Windows 10: KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

Brink · Mar 20, 2019

KB4346088: Intel microcode updates

Applies to: Windows 10

Summary

Intel recently announced that they have completed software validations and have started to release new microcode for current CPU platforms in reaction to the following threats:

Spectre Variant 3a (CVE-2018-3640: "Rogue System Register Read (RSRE)")

Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)")

L1TF (CVE-2018-3620, CVE-2018-3646: "L1 Terminal Fault")

This new release includes a microcode update from Intel for the following CPUs.

Important Install this update for the listed processors only.

Code Name Product Collection Product Names CPUID Intel microcode update revision Apollo Lake Intel® Pentium® Processor J Series
Intel® Pentium® Processor N Series
Intel® Celeron® Processor J Series
Intel® Celeron® Processor N Series
Intel® Atom® Processor A Series
Intel® Atom® Processor E3900 Series Intel® Pentium® Processor J4205, N4200
Intel® Celeron® Processor J3355, J3455, N3350, N3450
Intel® Atom® Processor x5-A3930, x5-A3940, x7-A3950, x7-A3960
Intel® Atom® Processor x5-E3930, x5-E3940, x7-E3950 506C9 0x32 Apollo Lake Intel® Atom® Processor E3900 Series Intel® Atom® Processor x5-E3930, x5-E3940, x7-E3950 506CA 0x0C Arrandale Legacy Intel® Core™ Processors Intel® Core™ Processor i7-620M, i7-620LM, i7-620UM, i7-640LM, i7-640UM
Intel® Core™ Processor i5-430M, i5-520M, i5-520UM, i5-540M
Intel® Core™ Processor i3-330M, i3-350M
Intel® Celeron® Processor P4500, P4505 20652 0x11 Arrandale Legacy Intel® Core™ Processors Intel® Core™ Processor i7-610E, i7-620LE, i7-620LM, i7-620M, i7-620UE, i7-620UM, i7-640LM, i7-640M, i7-640UM, i7-660LM, i7-660UE, i7-660UM, i7-680UM
Intel® Core™ Processor i5-430M, i5-430UM, i5-450M, i5-460M, i5-470UM, i5-480M, i5-520E, i5-520M, i5-520UM, i5-540M, i5-540UM, i5-560M, i5-560UM, i5-580M
Intel® Core™ Processor i3-330E, i3-330M, i3-330UM, i3-350M, i3-370M, i3-380M, i3-380UM, i3-390M
Intel® Pentium® Processor P6000, P6100, P6200, P6300, U5400, U5600
Intel® Celeron® Processor P4500, P4505, P4600, U3400, U3405, U3600 20655 0x7 Broadwell DE A1 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1513N, D-1523N, D-1533N, D-1543N, D1553N 50665 0xE00000A Broadwell DE V1 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1520, D-1540 50662 0x17 Broadwell DE V2,V3 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1518, D-1519, D-1521, D-1527, D-1528, D-1529, D-1531, D-1533, D-1537, D-1541, D-1548
Intel® Pentium® Processor D1507, D1508, D1509, D1517, D1519 50663 0x7000013 Broadwell DE Y0 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1557, D-1559, D-1567, D-1571, D-1577, D-1581, D-1587 50664 0xF000012 Broadwell E Intel® Core™ X - series Processors Intel® Core™ Processor Extreme Edition i7-6950K
Intel® Core™ Processor i7-6800K, i7-6850, i7-6900K 406F1 0xB00002C Broadwell H 43e 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-5700EQ, i7-5700HQ, i7-5750HQ, i7-5850EQ , i7-5850HQ, i7-5950HQ,
Intel® Core™ Processor i5-5575R, i5-5675C, i5-5675R, i7-5775C, i7-5775R 40671 0x1E Broadwell Server E, EP, EP4S Intel® Xeon® Processor E5 v4 Family Intel® Xeon® Processor v4 E5-2603, E5-2608L, E5-2609, E5-2618L, E5-2620, E5-2623, E5-2628L, E5-2630L, E5-2630, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650L, E5-2650, E5-2658, E5-2660, E5-2667, E5-2679, E5-2680, E5-2683, E5-2690, E5-2695, E5-2697A, E5-2697, E5-2698, E5-2699A, E5-2699, E5-2699R, E5-4628L 406F1 0xB00002C Broadwell Server EX Intel® Xeon® Processor E7 v4 Family Intel® Xeon® Processor v4 E7-4809, E7-4820, E7-4830, E7-4850, E7-8855, E7-8860, E7-8867, E7-8870, E7-8880, E7-8890, E7-8891, E7-8893, E7-8894 406F1 0xB00002C Broadwell U 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-5650U, i7-5600U, i7-5557U, i7-5550U, i7-5500U
Intel® Core™ Processor i5-5350U, i5-5350, i5-5300U, i5-5287U, i5-5257U, i5-5250U, i5-5200U
Intel® Core™ Processor i3-5157U, i3-5020U, i3-5015U, i3-5010U, i3-5006U, i3-5005U, i3-5010U
Intel® Pentium® Processor 3805U, 3825U, 3765U, 3755U, 3215U, 3205U
Intel® Celeron® 3765U 306D4 0x2B Broadwell Xeon E3 Intel® Xeon® Processor E3 v4 Family Intel® Xeon® Processor v4 E3-1258L, E3-1265L, E3-1278L, E3-1285, E3-1285 40671 0x1E Broadwell Y 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor M-5Y71, M-5Y70, M-5Y51, M-5Y3, M-5Y10c, M-5Y10a, M-5Y10 306D4 0x2B Broxton Intel® Atom® Processor T Series Intel® Atom® Processor T5500, T5700 506C2 0x14 Clarkdale Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor Intel® Core™ Processor i5-650, 660, 661, 670
Intel® Core™ Processor i3-530, 540, 550, 560
Intel® Pentium® Processor G6950 20652 0x11 Clarkdale Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor Intel® Core™ Processor i5-650, 655K, 660, 661, 670, 680
Intel® Core™ Processor i3-530, 540
Intel® Pentium® Processor G6950, G6951, G6960 20655 0x7 Clarkdale Xeon Legacy Intel® Xeon® Processors Intel® Xeon® Processor L3406 20652 0x11 Denverton Intel® Atom® Processor C Series Intel® Atom® Processor C3308, C3338, C3508, C3538, C3558, C3708, C3750, C3758, C3808, C3830, C3850, C3858, C3950, C3955, C3958 506F1 0x24 Gladden Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor
Legacy Intel® Celeron® Processor
Intel® Xeon® Processor E3 Family Intel® Core™ Processor i3-2115C, i3-3115C
Intel® Pentium® Processor B915C, B925C
Intel® Celeron® Processor 725C
Intel® Xeon® Processor E3-1105C, E3-1125C, E3-1105C v2, E3-1125C v2 306A9 0x20 Haswell Desktop 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4765T, i7-4770, i7-4770K, i7-4770S, i7-4770T, i7-4771
Intel® Core™ Processor i5-4430, i5-4430S, i5-4440, i5-4440S, i5-4570, i5-4570S, i5-4570T, i5-4670, i5-4670K, i5-4670S, i5-4670T
Intel® Core™ Processor i3-4130, i3-4130T, i3-4330, i3-4330T, i3-4340
Intel® Pentium® Processor G3220, G3220T, G3420, G3430 306C3 0x25 Haswell H 4th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-4700EC, i7-4700HQ, i7-4702EC, i7-4702HQ, i7-4710HQ, i7-4712HQ, i7-4720HQ, i7-4722HQ, i7-4750HQ, i7-4760HQ, i7-4770HQ, i7-4850HQ, i7-4870HQ, i7-4950HQ,
i7-4960HQ, i7-4980HQ
Intel® Core™ Processor i5-4210H, i5-4402EC 40661 0x1A Haswell M 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family
Intel® Celeron® Processor Family Intel® Core™ Processor Extreme Edition i7-4930MX
Intel® Core™ Processor i7-4700EQ, i7-4700MQ, i7-4702MQ, i7-4710MQ, i7-4712MQ, i7-4800MQ, i7-4900MQ
Intel® Core™ Processor i5-4210M, i5-4400E, i5-4422E
Intel® Core™ Processor i3-4100M, i3-4110M
Intel® Pentium® 3560M
Intel® Celeron® 2970 306C3 0x25 Haswell R 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4770R
Intel® Core™ Processor i5-4570R, i5-4670R 40661 0x1A Haswell Server EX Intel® Xeon® Processor E7 v3 Family Intel® Xeon® Processor v3 E7-4809, E7-4820, E7-4830, E7-4850, E7-8860, E7-8867, E7-8870, E7-8880L, E7-8880, E7-8890, E7-8891, E7-8893 306F4 0x12 Haswell U 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4500U, i7-4510U, i7-4550U, i7-4558U, i7-4578U, i7-4600U, i7-4650U
Intel® Core™ Processor i5-4200U, i5-4210U, i5-4250U, i5-4258U, i5-4260U, i5-4278U, i5-4288U, i5-4300U, i5-4308U, i5-4350U
Intel® Core™ Processor i3-4005U, i3-4010U, i3-4025U, i3-4030U, i3-4100U, i3-4120U, i3-4158U
Intel® Pentium® Processor 3556U, 3558U, 3665U
Intel® Celeron® Processor 2955U, 2957U, 2980U, 2981U 40651 0x24 Haswell Xeon E3 Intel® Xeon® Processor E3 v3 Family Intel® Xeon® Processor v3 E3-1220, E3-1225, E3-1230L, E3-1230, E3-1240, E3-1245, E3-1270, E3-1275L, E3-1275, E3-1280, E3-1285L, E3-1285L, E3-1285 306C3 0x25 Haswell Y 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4610Y
Intel® Core™ Processor i5-4200Y, i5-4202Y, i5-4210Y, i5-4220Y, i5-4300Y, i5-4302Y
Intel® Core™ Processor i3-4010Y, i3-4012Y, i3-4020Y, i3-4030Y
Intel® Pentium® Processor 3560Y, 3561Y 40651 0x24 Ivy Bridge 3rd Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family
Intel® Celeron® Processor Family Intel® Core™ Processor Extreme Edition i7-3920XM, i7-3940XM
Intel® Celeron® Processor 1000M, 1005M, 1007U, 1017U, 1019Y, 1020E, 1020M, 1037U, 1047UE, 927UE, G1610, G1610T, G1620, G1620T, G1630
Intel® Core™ Processor i7-3517U, i7-3517UE, i7-3520M, i7-3537U, i7-3540M, i7-3555LE, i7-3610QE, i7-3610QM, i7-3612QE, i7-3612QM, i7-3612QM, i7-3615QE, i7-3615QM, i7-3630QM, i7-3632QM, i7-3632QM, i7-3635QM, i7-3667U, i7-3687U, i7-3689Y, i7-3720QM, i7-3740QM, i7-3770, i7-3770K, i7-3770S, i7-3770T, i7-3820QM, i7-3840QM
Intel® Core™ Processor i5-3210M, i5-3210M, i5-3230M, i5-3230M, i5-3317U, i5-3320M, i5-3330, i5-3330S, i5-3337U, i5-3339Y, i5-3340, i5-3340M, i5-3340S, i5-3350P, i5-3360M, i5-3380M, i5-3427U, i5-3437U, i5-3439Y, i5-3450, i5-3450S, i5-3470, i5-3470S, i5-3470T, i5-3475S, i5-3550, i5-3550S, i5-3570, i5-3570K, i5-3570S, i5-3570T, i5-3610ME
Intel® Core™ Processor i3-3110M, i3-3120M, i3-3120ME, i3-3130M, i3-3210, i3-3217U, i3-3217UE, i3-3220, i3-3220T, i3-3225, i3-3227U, i3-3229Y, i3-3240, i3-3240T, i3-3245, i3-3250, i3-3250T
Intel® Pentium® Processor 1405 v2, 2020M, 2030M, 2117U, 2127U, 2129Y, A1018, G2010, G2020, G2020T, G2030, G2030T, G2100T, G2120, G2120T, G2130, G2140 306A9 0x20 Ivy Bridge Server EX Intel® Xeon® Processor E7 v2 Family Intel® Xeon® Processor v2 E7-2850, 2870, 2880, 2890, 4809, 4820, 4830, 4850, 4860, 4870, 4880, 4890, 8893, 8891, 8890, 8880L, 8880, 8870, 8857, 8850 306E7 0x714 Ivy Bridge Xeon E3 Intel® Xeon® Processor E3 v2 Family Intel® Xeon® Processor v2 E3-1220, E3-1220L, E3-1225, E3-1230, E3-1235, E3-1240, E3-1245, E3-1265L, E3-1270, E3-1275, E3-1280, E3-1290 306A9 0x20 Lynnfield Legacy Intel® Core™ Processors Intel® Core™ Processor i7-860, 860S, 870, 870S, 875K, 880
Intel® Core™ Processor i5-750, 750S, 760 106E5 0x0A Lynnfield Xeon Legacy Intel® Xeon® Processors Intel® Xeon® Processor L3426
Intel® Xeon® Processor X3430, X3440, X3450, X3460, X3470, X3480 106E5 0x0A Nehalem EP, Nehalem WS Legacy Intel® Xeon® Processors Intel® Xeon® Processor E5502, E5503, E5504, E5506, E5507, E5520, E5530, E5540
Intel® Xeon® Processor L5506, L5508, L5518, L5520, L5530
Intel® Xeon® Processor W5580, W5590
Intel® Xeon® Processor X5550, X5560, X5570 106A5 0x1D Nehalem EX Legacy Intel® Xeon® Processors Intel® Xeon® Processor E6510, E6540, E7520, E7530, E7540, L7545, L7555, X6550, X7542, X7550, X7560 206E6 0x0D Sandy Bridge Legacy Intel® Core™ Processors Intel® Core™ Processor Extreme Edition i7-2920XM, i7-2960XM
Intel® Core™ Processor i7-2600, i7-2600K, i7-2600S, i7-2610UE, i7-2617M, i7-2620M, i7-2629M, i7-2630QM, i7-2635QM, i7-2637M, i7-2640M, i7-2649M, i7-2655LE, i7-2657M, i7-2670QM, i7-2675QM, i7-2677M, i7-2700K, i7-2710QE, i7-2715QE, i7-2720QM, i7-2760QM, i7-2820QM, i7-2860QM
Intel® Core™ Processor i5-2300, i5-2310, i5-2320, i5-2380P, i5-2390T, i5-2400, i5-2400S, i5-2405S, i5-2410M, i5-2430M, i5-2435M, i5-2450M, i5-2450P, i5-2467M, i5-2500, i5-2500K, i5-2500S, i5-2500T, i5-2510E, i5-2515E, i5-2520M, i5-2537M, i5-2540M, i5-2550K, i5-2557M
Intel® Core™ Processor i3-2100, i3-2100T, i3-2102, i3-2105, i3-2120, i3-2120T, i3-2125, i3-2130, i3-2310E, i3-2310M, i3-2312M, i3-2328M, i3-2330E, i3-2330M, i3-2332M, i3-2340UE, i3-2348M, i3-2350M, i3-2357M, i3-2365M, i3-2367M, i3-2370M, i3-2375M, i3-2377M
Intel® Pentium® Processor 957, 967, 977, 987, 997, B940, B950, B960, B970, B980, G620, G620T, G622, G630, G630T, G632, G640, G640T, G645, G645T, G840, G850, G860, G860T, G870
Intel® Celeron® Processor 787, 797, 807, 807UE, 827E, 847, 847E, 857, 867, 877, 887, B710, B720, B800, B810, B810E, B815, B820, B830, B840, G440, G460, G465, G470, G530, G530T, G540, G540T, G550, G550T, G555 206A7 0x2E Sandy Bridge E Intel® Core™ X-series Processors Intel® Core™ Processor Extreme Edition i7-3960X, i7-3970X
Intel® Core™ Processor i7-3820, 3930K 206D7 0x714 Sandy Bridge Server EN/EP/EP4S Intel® Xeon® Processor E5 Family Intel® Xeon® Processor E5-1428L, E5-1620, E5-1650, E5-1660, E5-2403, E5-2407, E5-2418L, E5-2420, E5-2428L, E5-2430, E5-2430L, E5-2440, E5-2448L, E5-2450, E5-2450L, E5-2470, E5-2603, E5-2609, E5-2620, E5-2630, E5-2630L, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650, E5-2650L, E5-2658, E5-2660, E5-2665, E5-2667, E5-2670, E5-2680, E5-2687W, E5-2690, E5-4603, E5-4607, E5-4610, E5-4617, E5-4620, E5-4640, E5-4650, E5-4650L
Intel® Pentium® Processor 1405 206D7 0x714 Sandy Bridge Xeon E3 Intel® Xeon® Processor E3 Family Intel® Xeon® Processor E3-1120, E3-1120L, E3-1225, E3-1230, E3-1235, E3-1240, E3-1245, E3-1260L, E3-1265L, E3-1270, E3-1275, E3-1280, E3-1285, E3-1290 206A7 0x2E Skylake D, Bakerville Intel® Xeon® Processor D Family Intel® Xeon® Processor D-2123IT, D-2141I, D-2142IT, D-2143IT, D-2145NT, D-2146NT, D-2161I, D-2163IT, D-2166NT, D-2173IT, D-2177NT, D-2183IT, D-2187NT 50654 0x200004D Skylake Server Intel® Xeon® Scalable Processors Intel® Xeon® Platinum Processor 8153, 8156, 8158, 8160, 8160F, 8160M, 8160T, 8164, 8168, 8170, 8170M, 8176, 8176F, 8176M, 8180, 8180M
Intel® Xeon® Gold Processor 5115, 5118, 5119T, 5120, 5120T, 5122, 6126, 6126F, 6126T, 6128, 6130, 6130F, 6130T, 6132, 6134, 6134M, 6136, 6138, 6138F, 6138T, 6140, 6140M, 6142, 6142F, 6142M, 6144, 6146, 6148, 6148F, 6150, 6152, 6154
Intel® Xeon® Silver Processor 4108, 4109T, 4110, 4112, 4114, 4114T, 4116, 4116T
Intel® Xeon® Bronze Processor 3104, 3106 50654 0x200004D Skylake W Intel® Xeon® Processor W Family Intel® Xeon® Processor W-2123, W-2125, W-2133, W-2135, W-2145, W-2155, W-2195, W-2175 50654 0x200004D Skylake X Intel® Core™ X-series Processors Intel® Core™ Extreme Edition Processor i9-7980XE
Intel® Core™ X-series Processor i9-7900X, i9-7920X, i9-7940X, i9-7960X
Intel® Core™ X-series Processor i7-7800X, i7-7820X 50654 0x200004D Skylake Xeon E3 Intel® Xeon® Processor E3 v5 Family Intel® Xeon® Processor v5 E3-1220, E3-1225, E3-1230, E3-1235L, E3-1240, E3-1240L, E3-1245, E3-1260L, E3-1270, E3-1275, E3-1280, E3-1505M, E3-1515M, E3-1535M, E3-1545M, E3-1558L, E3-1565L, E3-1575M, E3-1578L, E3-1585, E3-1585L 506E3 0xC6 Westmere EX (EGL, WSM) Intel® Xeon® Processor E7 Family Intel® Xeon® Processor E7-2803, 2820, 2830, 2850, 2860, 2870, 4807, 4820, 4830, 4850, 4860, 4870, 8830, 8837, 8850, 8860, 8867L, 8870 206F2 0x3B Gemini Lake Intel® Pentium® Processor Silver Series
Intel® Celeron® Processor J Series
Intel® Celeron® Processor N Series Intel® Pentium® Silver Processor J5005, N5000
Intel® Celeron® Processor J4005, J4105
Intel® Celeron® Processor N4000, N4100 706A1 0x2C Haswell E Intel® Core™ X-series Processors Intel® Core™ Processor Extreme Edition i7-5960X
Intel® Core™ Processor i7-5820K, i7-5930K 306F2 0x40 Haswell Server EP, EP4S Intel® Xeon® Processor E5 v3 Family Intel® Xeon® Processor v3 E5-1428L, E5-1603, E5-1607, E5-1620, E5-1630, E5-1650, E5-1660, E5-1680, E5-2408L, E5-2418L, E5-2428L, E5-2438L, E5-2603, E5-2608L, E5-2608L, E5-2609, E5-2618L, E5-2620, E5-2623, E5-2628L, E5-2630, E5-2630L, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650, E5-2650L, E5-2658, E5-2660, E5-2667, E5-2670, E5-2680, E5-2683, E5-2685, E5-2687W, E5-2690, E5-2695, E5-2697, E5-2698, E5-2699, E5-4610, E5-4620, E5-4627, E5-4640, E5-4648, E5-4650, E5-4655, E5-4660, E5-4667, E5-4669 306F2 0x40 Ivy Bridge E Intel® Core™ X-series Processors Intel® Core™ Processor Extreme Edition i7-4960X Intel® Core™ Processor i7-4820K, i7-4930K 306E4 0x42D Ivy Bridge Server EN, EP, EP4S Intel® Xeon® Processor E5 v2 Family Intel® Xeon® Processor v2 E5-1428L, E5-1620, E5-1650, E5-1660, E5-2403, E5-2407, E5-2418L, E5-2420, E5-2428L, E5-2430, E5-2430L, E5-2440, E5-2448L, E5-2450, E5-2450L, E5-2470, E5-2603, E5-2609, E5-2618L, E5-2620, E5-2628L, E5-2630, E5-2630L, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650, E5-2650L, E5-2658, E5-2660, E5-2667, E5-2670, E5-2680, E5-2687W, E5-2690, E5-2695, E5-2697, E5-4603, E5-4607, E5-4610, E5-4620, E5-4624L, E5-4627, E5-4640, E5-4650, E5-4657L 306E4 0x42D Sandy Bridge Server EN/EP/EP4S Intel® Xeon® Processor E5 Family Intel® Xeon® Processor E5-2620, E5-2630, E5-2630L, E5-2640, E5-2650, E5-2650L, E5-2660, E5-2667, E5-2670, E5-2680, E5-2690 206D6 0x61D WestmereEP, WS Legacy Intel® Xeon® Processors Intel® Xeon® Processor E5603, E5606, E5607, E5620, E5630, E5640, E5645, E5649Intel® Xeon® Processor L5609, L5618, L5630, L5638, L5640Intel® Xeon® Processor W3670, W3680Intel® Xeon® Processor X5647, X5650, X5660, X5667, X5670, X5672, X5675, X5677, X5680, X5687, X5690 206C2 0x1F Avoton/Rangeley Intel® Atom® Processor C2000 Product Family 406D8 0000012A Cherry View (Cherry trail, Braswell) Intel® Atom® x5-Zxxxx CPU 406C3 00000367 Skylake D, Bakerville Intel® Xeon® Processor D Family Intel® Xeon® Processor D-2123IT, D-2141I, D-2142IT, D-2143IT, D-2145NT, D-2146NT, D-2161I, D-2163IT, D-2166NT, D-2173IT, D-2177NT, D-2183IT, D-2187NT 50654 0x200004D Skylake Server Intel® Xeon® Scalable Processors Intel® Xeon® Platinum Processor 8153, 8156, 8158, 8160, 8160F, 8160M, 8160T, 8164, 8168, 8170, 8170M, 8176, 8176F, 8176M, 8180, 8180M Intel® Xeon® Gold Processor 5115, 5118, 5119T, 5120, 5120T, 5122, 6126, 6126F, 6126T, 6128, 6130, 6130F, 6130T, 6132, 6134, 6134M, 6136, 6138, 6138F, 6138T, 6140, 6140M, 6142, 6142F, 6142M, 6144, 6146, 6148, 6148F, 6150, 6152, 6154 Intel® Xeon® Silver Processor 4108, 4109T, 4110, 4112, 4114, 4114T, 4116, 4116T Intel® Xeon® Bronze Processor 3104, 3106 50654 0x200004D Apollo Lake Intel® Pentium® Processor J Series
Intel® Pentium® Processor N Series
Intel® Celeron® Processor J Series
Intel® Celeron® Processor N Series
Intel® Atom® Processor A Series
Intel® Atom® Processor E3900 Series Intel® Pentium® Processor J4205, N4200 Intel® Celeron® Processor J3355, J3455, N3350, N3450 Intel® Atom® Processor x5-A3930, x5-A3940, x7-A3950, x7-A3960 Intel® Atom® Processor x5-E3930, x5-E3940, x7-E3950 506C9 0x32 Apollo Lake Intel® Atom® Processor E3900 Series Intel® Atom® Processor x5-E3930, x5-E3940, x7-E3950 506CA 0x0C Arrandale Legacy Intel® Core™ Processors Intel® Core™ Processor i7-620M, i7-620LM, i7-620UM, i7-640LM, i7-640UM Intel® Core™ Processor i5-430M, i5-520M, i5-520UM, i5-540M Intel® Core™ Processor i3-330M, i3-350M Intel® Celeron® Processor P4500, P4505 20652 0x11 Arrandale Legacy Intel® Core™ Processors Intel® Core™ Processor i7-610E, i7-620LE, i7-620LM, i7-620M, i7-620UE, i7-620UM, i7-640LM, i7-640M, i7-640UM, i7-660LM, i7-660UE, i7-660UM, i7-680UM Intel® Core™ Processor i5-430M, i5-430UM, i5-450M, i5-460M, i5-470UM, i5-480M, i5-520E, i5-520M, i5-520UM, i5-540M, i5-540UM, i5-560M, i5-560UM, i5-580M Intel® Core™ Processor i3-330E, i3-330M, i3-330UM, i3-350M, i3-370M, i3-380M, i3-380UM, i3-390M Intel® Pentium® Processor P6000, P6100, P6200, P6300, U5400, U5600 Intel® Celeron® Processor P4500, P4505, P4600, U3400, U3405, U3600 20655 0x7 Broadwell DE A1 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1513N, D-1523N, D-1533N, D-1543N, D1553N 50665 0xE00000A Broadwell DE V1 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1520, D-1540 50662 0x17 Broadwell DE V2,V3 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1518, D-1519, D-1521, D-1527, D-1528, D-1529, D-1531, D-1533, D-1537, D-1541, D-1548 Intel® Pentium® Processor D1507, D1508, D1509, D1517, D1519 50663 0x7000013 Broadwell DE Y0 Intel® Xeon® Processor D Family Intel® Xeon® Processor D-1557, D-1559, D-1567, D-1571, D-1577, D-1581, D-1587 50664 0xF000012 Broadwell E Intel® Core™ X - series Processors Intel® Core™ Processor Extreme Edition i7-6950K Intel® Core™ Processor i7-6800K, i7-6850, i7-6900K 406F1 0xB00002C Broadwell H 43e 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-5700EQ, i7-5700HQ, i7-5750HQ, i7-5850EQ , i7-5850HQ, i7-5950HQ, Intel® Core™ Processor i5-5575R, i5-5675C, i5-5675R, i7-5775C, i7-5775R 40671 0x1E Broadwell Server E, EP, EP4S Intel® Xeon® Processor E5 v4 Family Intel® Xeon® Processor v4 E5-2603, E5-2608L, E5-2609, E5-2618L, E5-2620, E5-2623, E5-2628L, E5-2630L, E5-2630, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650L, E5-2650, E5-2658, E5-2660, E5-2667, E5-2679, E5-2680, E5-2683, E5-2690, E5-2695, E5-2697A, E5-2697, E5-2698, E5-2699A, E5-2699, E5-2699R, E5-4628L 406F1 0xB00002C Broadwell Server EX Intel® Xeon® Processor E7 v4 Family Intel® Xeon® Processor v4 E7-4809, E7-4820, E7-4830, E7-4850, E7-8855, E7-8860, E7-8867, E7-8870, E7-8880, E7-8890, E7-8891, E7-8893, E7-8894 406F1 0xB00002C Broadwell U 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-5650U, i7-5600U, i7-5557U, i7-5550U, i7-5500U Intel® Core™ Processor i5-5350U, i5-5350, i5-5300U, i5-5287U, i5-5257U, i5-5250U, i5-5200U Intel® Core™ Processor i3-5157U, i3-5020U, i3-5015U, i3-5010U, i3-5006U, i3-5005U, i3-5010U Intel® Pentium® Processor 3805U, 3825U, 3765U, 3755U, 3215U, 3205U Intel® Celeron® 3765U 306D4 0x2B Broadwell Xeon E3 Intel® Xeon® Processor E3 v4 Family Intel® Xeon® Processor v4 E3-1258L, E3-1265L, E3-1278L, E3-1285, E3-1285 40671 0x1E Broadwell Y 5th Generation Intel® Core™ Processor Family Intel® Core™ Processor M-5Y71, M-5Y70, M-5Y51, M-5Y3, M-5Y10c, M-5Y10a, M-5Y10 306D4 0x2B Broxton Intel® Atom® Processor T Series Intel® Atom® Processor T5500, T5700 506C2 0x14 Clarkdale Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor Intel® Core™ Processor i5-650, 660, 661, 670 Intel® Core™ Processor i3-530, 540, 550, 560 Intel® Pentium® Processor G6950 20652 0x11 Clarkdale Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor Intel® Core™ Processor i5-650, 655K, 660, 661, 670, 680 Intel® Core™ Processor i3-530, 540 Intel® Pentium® Processor G6950, G6951, G6960 20655 0x7 Clarkdale Xeon Legacy Intel® Xeon® Processors Intel® Xeon® Processor L3406 20652 0x11 Denverton Intel® Atom® Processor C Series Intel® Atom® Processor C3308, C3338, C3508, C3538, C3558, C3708, C3750, C3758, C3808, C3830, C3850, C3858, C3950, C3955, C3958 506F1 0x24 Gladden Legacy Intel® Core™ Processors
Legacy Intel® Pentium® Processor
Legacy Intel® Celeron® Processor
Intel® Xeon® Processor E3 Family Intel® Core™ Processor i3-2115C, i3-3115C Intel® Pentium® Processor B915C, B925C Intel® Celeron® Processor 725C Intel® Xeon® Processor E3-1105C, E3-1125C, E3-1105C v2, E3-1125C v2 306A9 0x20 Haswell Desktop 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4765T, i7-4770, i7-4770K, i7-4770S, i7-4770T, i7-4771 Intel® Core™ Processor i5-4430, i5-4430S, i5-4440, i5-4440S, i5-4570, i5-4570S, i5-4570T, i5-4670, i5-4670K, i5-4670S, i5-4670T Intel® Core™ Processor i3-4130, i3-4130T, i3-4330, i3-4330T, i3-4340 Intel® Pentium® Processor G3220, G3220T, G3420, G3430 306C3 0x25 Haswell H 4th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-4700EC, i7-4700HQ, i7-4702EC, i7-4702HQ, i7-4710HQ, i7-4712HQ, i7-4720HQ, i7-4722HQ, i7-4750HQ, i7-4760HQ, i7-4770HQ, i7-4850HQ, i7-4870HQ, i7-4950HQ, i7-4960HQ, i7-4980HQ Intel® Core™ Processor i5-4210H, i5-4402EC 40661 0x1A Haswell M 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family
Intel® Celeron® Processor Family Intel® Core™ Processor Extreme Edition i7-4930MX Intel® Core™ Processor i7-4700EQ, i7-4700MQ, i7-4702MQ, i7-4710MQ, i7-4712MQ, i7-4800MQ, i7-4900MQ Intel® Core™ Processor i5-4210M, i5-4400E, i5-4422E Intel® Core™ Processor i3-4100M, i3-4110M Intel® Pentium® 3560M Intel® Celeron® 2970 306C3 0x25 Haswell R 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4770R Intel® Core™ Processor i5-4570R, i5-4670R 40661 0x1A Haswell Server EX Intel® Xeon® Processor E7 v3 Family Intel® Xeon® Processor v3 E7-4809, E7-4820, E7-4830, E7-4850, E7-8860, E7-8867, E7-8870, E7-8880L, E7-8880, E7-8890, E7-8891, E7-8893 306F4 0x12 Haswell U 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4500U, i7-4510U, i7-4550U, i7-4558U, i7-4578U, i7-4600U, i7-4650U Intel® Core™ Processor i5-4200U, i5-4210U, i5-4250U, i5-4258U, i5-4260U, i5-4278U, i5-4288U, i5-4300U, i5-4308U, i5-4350U Intel® Core™ Processor i3-4005U, i3-4010U, i3-4025U, i3-4030U, i3-4100U, i3-4120U, i3-4158U Intel® Pentium® Processor 3556U, 3558U, 3665U Intel® Celeron® Processor 2955U, 2957U, 2980U, 2981U 40651 0x24 Haswell Xeon E3 Intel® Xeon® Processor E3 v3 Family Intel® Xeon® Processor v3 E3-1220, E3-1225, E3-1230L, E3-1230, E3-1240, E3-1245, E3-1270, E3-1275L, E3-1275, E3-1280, E3-1285L, E3-1285L, E3-1285 306C3 0x25 Haswell Y 4th Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family Intel® Core™ Processor i7-4610Y Intel® Core™ Processor i5-4200Y, i5-4202Y, i5-4210Y, i5-4220Y, i5-4300Y, i5-4302Y Intel® Core™ Processor i3-4010Y, i3-4012Y, i3-4020Y, i3-4030Y Intel® Pentium® Processor 3560Y, 3561Y 40651 0x24 Ivy Bridge 3rd Generation Intel® Core™ Processor Family
Intel® Pentium® Processor Family
Intel® Celeron® Processor Family Intel® Core™ Processor Extreme Edition i7-3920XM, i7-3940XM Intel® Celeron® Processor 1000M, 1005M, 1007U, 1017U, 1019Y, 1020E, 1020M, 1037U, 1047UE, 927UE, G1610, G1610T, G1620, G1620T, G1630 Intel® Core™ Processor i7-3517U, i7-3517UE, i7-3520M, i7-3537U, i7-3540M, i7-3555LE, i7-3610QE, i7-3610QM, i7-3612QE, i7-3612QM, i7-3612QM, i7-3615QE, i7-3615QM, i7-3630QM, i7-3632QM, i7-3632QM, i7-3635QM, i7-3667U, i7-3687U, i7-3689Y, i7-3720QM, i7-3740QM, i7-3770, i7-3770K, i7-3770S, i7-3770T, i7-3820QM, i7-3840QM Intel® Core™ Processor i5-3210M, i5-3210M, i5-3230M, i5-3230M, i5-3317U, i5-3320M, i5-3330, i5-3330S, i5-3337U, i5-3339Y, i5-3340, i5-3340M, i5-3340S, i5-3350P, i5-3360M, i5-3380M, i5-3427U, i5-3437U, i5-3439Y, i5-3450, i5-3450S, i5-3470, i5-3470S, i5-3470T, i5-3475S, i5-3550, i5-3550S, i5-3570, i5-3570K, i5-3570S, i5-3570T, i5-3610ME Intel® Core™ Processor i3-3110M, i3-3120M, i3-3120ME, i3-3130M, i3-3210, i3-3217U, i3-3217UE, i3-3220, i3-3220T, i3-3225, i3-3227U, i3-3229Y, i3-3240, i3-3240T, i3-3245, i3-3250, i3-3250T Intel® Pentium® Processor 1405 v2, 2020M, 2030M, 2117U, 2127U, 2129Y, A1018, G2010, G2020, G2020T, G2030, G2030T, G2100T, G2120, G2120T, G2130, G2140 306A9 0x20 Ivy Bridge Server EX Intel® Xeon® Processor E7 v2 Family Intel® Xeon® Processor v2 E7-2850, 2870, 2880, 2890, 4809, 4820, 4830, 4850, 4860, 4870, 4880, 4890, 8893, 8891, 8890, 8880L, 8880, 8870, 8857, 8850 306E7 0x714 Ivy Bridge Xeon E3 Intel® Xeon® Processor E3 v2 Family Intel® Xeon® Processor v2 E3-1220, E3-1220L, E3-1225, E3-1230, E3-1235, E3-1240, E3-1245, E3-1265L, E3-1270, E3-1275, E3-1280, E3-1290 306A9 0x20 Lynnfield Legacy Intel® Core™ Processors Intel® Core™ Processor i7-860, 860S, 870, 870S, 875K, 880 Intel® Core™ Processor i5-750, 750S, 760 106E5 0x0A Lynnfield Xeon Legacy Intel® Xeon® Processors Intel® Xeon® Processor L3426 Intel® Xeon® Processor X3430, X3440, X3450, X3460, X3470, X3480 106E5 0x0A Nehalem EP, Nehalem WS Legacy Intel® Xeon® Processors Intel® Xeon® Processor E5502, E5503, E5504, E5506, E5507, E5520, E5530, E5540 Intel® Xeon® Processor L5506, L5508, L5518, L5520, L5530 Intel® Xeon® Processor W5580, W5590 Intel® Xeon® Processor X5550, X5560, X5570 106A5 0x1D Nehalem EX Legacy Intel® Xeon® Processors Intel® Xeon® Processor E6510, E6540, E7520, E7530, E7540, L7545, L7555, X6550, X7542, X7550, X7560 206E6 0x0D Sandy Bridge Legacy Intel® Core™ Processors Intel® Core™ Processor Extreme Edition i7-2920XM, i7-2960XM Intel® Core™ Processor i7-2600, i7-2600K, i7-2600S, i7-2610UE, i7-2617M, i7-2620M, i7-2629M, i7-2630QM, i7-2635QM, i7-2637M, i7-2640M, i7-2649M, i7-2655LE, i7-2657M, i7-2670QM, i7-2675QM, i7-2677M, i7-2700K, i7-2710QE, i7-2715QE, i7-2720QM, i7-2760QM, i7-2820QM, i7-2860QM Intel® Core™ Processor i5-2300, i5-2310, i5-2320, i5-2380P, i5-2390T, i5-2400, i5-2400S, i5-2405S, i5-2410M, i5-2430M, i5-2435M, i5-2450M, i5-2450P, i5-2467M, i5-2500, i5-2500K, i5-2500S, i5-2500T, i5-2510E, i5-2515E, i5-2520M, i5-2537M, i5-2540M, i5-2550K, i5-2557M Intel® Core™ Processor i3-2100, i3-2100T, i3-2102, i3-2105, i3-2120, i3-2120T, i3-2125, i3-2130, i3-2310E, i3-2310M, i3-2312M, i3-2328M, i3-2330E, i3-2330M, i3-2332M, i3-2340UE, i3-2348M, i3-2350M, i3-2357M, i3-2365M, i3-2367M, i3-2370M, i3-2375M, i3-2377M Intel® Pentium® Processor 957, 967, 977, 987, 997, B940, B950, B960, B970, B980, G620, G620T, G622, G630, G630T, G632, G640, G640T, G645, G645T, G840, G850, G860, G860T, G870 Intel® Celeron® Processor 787, 797, 807, 807UE, 827E, 847, 847E, 857, 867, 877, 887, B710, B720, B800, B810, B810E, B815, B820, B830, B840, G440, G460, G465, G470, G530, G530T, G540, G540T, G550, G550T, G555 206A7 0x2E Sandy Bridge E Intel® Core™ X-series Processors Intel® Core™ Processor Extreme Edition i7-3960X, i7-3970X Intel® Core™ Processor i7-3820, 3930K 206D7 0x714 Sandy Bridge Server EN/EP/EP4S Intel® Xeon® Processor E5 Family Intel® Xeon® Processor E5-1428L, E5-1620, E5-1650, E5-1660, E5-2403, E5-2407, E5-2418L, E5-2420, E5-2428L, E5-2430, E5-2430L, E5-2440, E5-2448L, E5-2450, E5-2450L, E5-2470, E5-2603, E5-2609, E5-2620, E5-2630, E5-2630L, E5-2637, E5-2640, E5-2643, E5-2648L, E5-2650, E5-2650L, E5-2658, E5-2660, E5-2665, E5-2667, E5-2670, E5-2680, E5-2687W, E5-2690, E5-4603, E5-4607, E5-4610, E5-4617, E5-4620, E5-4640, E5-4650, E5-4650L Intel® Pentium® Processor 1405 206D7 0x714 Sandy Bridge Xeon E3 Intel® Xeon® Processor E3 Family Intel® Xeon® Processor E3-1120, E3-1120L, E3-1225, E3-1230, E3-1235, E3-1240, E3-1245, E3-1260L, E3-1265L, E3-1270, E3-1275, E3-1280, E3-1285, E3-1290 206A7 0x2E Skylake W Intel® Xeon® Processor W Family Intel® Xeon® Processor W-2123, W-2125, W-2133, W-2135, W-2145, W-2155, W-2195, W-2175 50654 0x200004D Skylake X Intel® Core™ X-series Processors Intel® Core™ Extreme Edition Processor i9-7980XE Intel® Core™ X-series Processor i9-7900X, i9-7920X, i9-7940X, i9-7960X Intel® Core™ X-series Processor i7-7800X, i7-7820X 50654 0x200004D Skylake Xeon E3 Intel® Xeon® Processor E3 v5 Family Intel® Xeon® Processor v5 E3-1220, E3-1225, E3-1230, E3-1235L, E3-1240, E3-1240L, E3-1245, E3-1260L, E3-1270, E3-1275, E3-1280, E3-1505M, E3-1515M, E3-1535M, E3-1545M, E3-1558L, E3-1565L, E3-1575M, E3-1578L, E3-1585, E3-1585L 506E3 0xC6 Westmere EX (EGL, WSM) Intel® Xeon® Processor E7 Family Intel® Xeon® Processor E7-2803, 2820, 2830, 2850, 2860, 2870, 4807, 4820, 4830, 4850, 4860, 4870, 8830, 8837, 8850, 8860, 8867L, 8870 206F2 0x3B Skylake U23e 6th Generation Intel® Core™ Processor Family Intel® Core™ Processor I7-6560U, I7-6567U, I7-6650U, I7-6660U Intel® Core™ Processor I5-6260U, I5-6267U, I5-6287U, I5-6360U Intel® Core™ Processor I3-6167U 406E3 0xC6 Skylake U 6th Generation Intel® Core™ Processors Intel® Core™ Processor i7-6500U, i7-6510U, i7-6600U Intel® Core™ Processor i5-6200U, i5-6210U, i5-6300U, i5-6310U Intel® Core™ Processor i3-6100U, i3-6110U Intel® Pentium® Processor 4405U, 4415U Intel® Celeron® Processor 3855U, 3865U, 3955U, 3965U 406E3 0xC6 Skylake Y 6th Generation Intel® Core™ Processor Family Intel® Core™ Processor m7-6Y75 Intel® Core™ Processor m5-6Y54, m5-6Y57 Intel® Core™ Processor m3-6Y30 Intel® Pentium® Processor 4405Y 406E3 0xC6 Skylake H 6th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-6700HQ, i7-6770HQ, i7-6820HK, i7-6820HQ, i7-6870HQ, i7-6920HQ, i7-6970HQ Intel® Core™ Processor i5-6300HQ, i5-6350HQ, i5-6440HQ Intel® Core™ Processor i3-6100H 506E3 0xC6 Skylake S 6th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-6700, i7-6700K, i7-6700T Intel® Core™ Processor i5-6400, i5-6400T, i5-6500, i5-6500T , i5-6600, i5-6600K, i5-6600T Intel® Core™ Processor i3-6100, i3-6100T, i3-6120, i3-6120T, i3-6300, i3-6300T, i3-6320, i3-6320T Intel® Pentium® Processor G4400, G4400T, G4420, G4420T, G4500, G4500T, G4520, G4520T, G4540 Intel® Celeron® Processor G3900, G3900T, G3920, G3920T, G3940 506E3 0xC6
Important
This update is a standalone update that is targeted for Windows 10 Release To Market (RTM). This update also includes Intel microcode updates that were already released for these operating systems at the time of release to manufacturing (RTM). We will offer additional microcode updates from Intel through this article for these operating systems as they become available to Microsoft. By default, this mitigation is turned off for Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)"). Please make sure that mitigation against Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)") is enabled for Windows client through the registry settings that are documented in the following article:

Windows client guidance for IT Pros to protect against speculative execution side-channel vulnerabilities

Consult with your device manufacturer and Intel through their websites regarding their microcode recommendation for your device before you apply this update to your device.

Known issues

Microsoft is not aware of any issues that affect this update currently.

How to obtain and install the update

Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.
Click to expand...

Source: https://support.microsoft.com/en-us/...rocode-updates

See also:

Summary of Intel microcode updates

KB4465065 Intel Microcode Updates for Windows 10 v1809 - March 19

KB4346084 Intel Microcode Updates for Windows 10 v1803 - March 19

KB4346085 Intel Microcode Updates for Windows 10 v1709 - March 19

KB4346086 Intel Microcode Updates for Windows 10 v1703 - March 19

KB4346087 Intel Microcode Updates for Windows 10 v1607 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

Direct download links for KB4346088 MSU file from Microsoft Update Catalog:

*Arrow Download KB4346088 MSU for Windows 10 v1507 32-bit (x86) - 1.4 MB

*Arrow Download KB4346088 MSU for Windows 10 v1507 64-bit (x64) - 1.4 MB

Tip Find Windows 10 Version Number

PowerShell script for CPU information, incl. CPUID Solved - Windows 10 Forums

Speculation Control Validation PowerShell Script
Understanding Get-SpeculationControlSettings PowerShell script output

:)

Brink · Mar 20, 2019

KB4346088 Intel microcode updates for Windows 10 v1507 - August 21

New KB4346088 released August 21, 2018. See first post for more details. *Smile

See also: KB4346088 Intel microcode updates for Windows 10 v1507 - August 21 - Windows 10 Forums

RAJU.MSC · Mar 20, 2019

INTEL MICROCODES UPDATES KB4346088 FOR WINDOWS 10 RTM ONLY UPDATED 25-08-2018

intel has recently list the microcodes for certain Intel core processors because of vulnerability, Microsoft reacted has released the windows update embedded microcodes for only
Windows 10 (RTM) KB4346088

For more information visit this website

https://support.microsoft.com/en-us/help/4346088/kb4346088-intel-microcode-updates

direct downloading links

for 64bit

http://download.windowsupdate.com/d..._34d96121eeb6900b0dcf9c3f986d166708dff4f2.msu

for 32bit

http://download.windowsupdate.com/d..._ac83aa6b8b0f17fc2a2d9c9c5ee0e696ff13c472.msu

Brink · Mar 20, 2019

KB4346088 Intel microcode updates for Windows 10 v1507 - August 21

KB4346088: Intel microcode updates

Applies to: Windows 10

Summary

Intel recently announced that they have completed their validations and started to release microcode for recent CPU platforms related to Spectre Variant 3a (CVE-2018-3640: "Rogue System Register Read (RSRE)"), Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)"), L1TF (CVE-2018-3615, CVE-2018-3620, CVE-2018-3646: "L1 Terminal Fault"). In addition to microcode updates previously released in KB4091666 to address Spectre Variant 2 (CVE 2017-5715: "Branch Target Injection"), this update also includes microcode updates from Intel for the following CPUs.

[table][tr][td]Code Name[/td] [td]Product Collection[/td] [td]Product Names[/td] [td]CPUID[/td] [td]Intel microcode update revision[/td] [/tr] [tr][td]Skylake U23e[/td] [td]6th Generation Intel® Core™ Processor Family[/td] [td]Intel® Core™ Processor I7-6560U, I7-6567U, I7-6650U, I7-6660U Intel® Core™ Processor I5-6260U, I5-6267U, I5-6287U, I5-6360U Intel® Core™ Processor I3-6167U[/td] [td]406E3[/td] [td]0xC6[/td] [/tr] [tr][td]Skylake U[/td] [td]6th Generation Intel® Core™ Processors[/td] [td]Intel® Core™ Processor i7-6500U, i7-6510U, i7-6600U Intel® Core™ Processor i5-6200U, i5-6210U, i5-6300U, i5-6310U Intel® Core™ Processor i3-6100U, i3-6110U Intel® Pentium® Processor 4405U, 4415U Intel® Celeron® Processor 3855U, 3865U, 3955U, 3965U[/td] [td]406E3[/td] [td]0xC6[/td] [/tr] [tr][td]Skylake Y[/td] [td]6th Generation Intel® Core™ Processor Family[/td] [td]Intel® Core™ Processor m7-6Y75 Intel® Core™ Processor m5-6Y54, m5-6Y57 Intel® Core™ Processor m3-6Y30 Intel® Pentium® Processor 4405Y[/td] [td]406E3[/td] [td]0xC6[/td] [/tr] [tr][td]Skylake H[/td] [td]6th Generation Intel® Core™ Processor Family[/td] [td]Intel® Core™ Processor i7-6700HQ, i7-6770HQ, i7-6820HK, i7-6820HQ, i7-6870HQ, i7-6920HQ, i7-6970HQ Intel® Core™ Processor i5-6300HQ, i5-6350HQ, i5-6440HQ Intel® Core™ Processor i3-6100H[/td] [td]506E3[/td] [td]0xC6[/td] [/tr] [tr][td]Skylake S[/td] [td]6th Generation Intel® Core™ Processor Family[/td] [td]Intel® Core™ Processor i7-6700, i7-6700K, i7-6700T Intel® Core™ Processor i5-6400, i5-6400T, i5-6500, i5-6500T , i5-6600, i5-6600K, i5-6600T Intel® Core™ Processor i3-6100, i3-6100T, i3-6120, i3-6120T, i3-6300, i3-6300T, i3-6320, i3-6320T Intel® Pentium® Processor G4400, G4400T, G4420, G4420T, G4500, G4500T, G4520, G4520T, G4540 Intel® Celeron® Processor G3900, G3900T, G3920, G3920T, G3940[/td] [td]506E3[/td] [td]0xC6[/td] [/tr] [/table]

This update is a stand-alone update that's available through the Microsoft Update Catalog and targeted to Windows 10 Release To Market (RTM). This update also includes Intel microcode updates that were already released for this operating system at the time of Release To Manufacturing (RTM).

We will offer additional microcode updates from Intel through this article for this operating system as they become available to Microsoft.

Please make sure that mitigation against Spectre Variant 2 is enabled through the registry settings that are documented in the following article:

Windows Client Guidance for IT Pros to protect against speculative execution side-channel vulnerabilities

Important
Refer to the websites for Intel and your device manufacturer for their microcode recommendations before you apply this update to your device.

Known issues

Microsoft is not aware of any issues that affect this update currently.

How to obtain and install the update

Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Click to expand...

Source: https://support.microsoft.com/en-us/...rocode-updates

See also: KB4346088 Intel microcode updates for Windows 10 v1507 - August 21 - Windows 10 Forums

See also:

KB4093836 Summary of Intel microcode updates

KB4346084 Intel microcode updates for Windows 10 v1803 - August 21 - Windows 10 Forums

KB4346085 Intel microcode updates for Windows 10 v1709 - August 21 - Windows 10 Forums

KB4346087 Intel microcode updates for Windows 10 v1607 - August 21 - Windows 10 Forums

Direct download links for KB4346088 MSU file from Microsoft Update Catalog:

*Arrow Download KB4346088 MSU for Windows 10 v1507 32-bit (x86) - 1.0 MB

*Arrow Download KB4346088 MSU for Windows 10 v1507 64-bit (x64) - 1.0 MB

Tip Find Windows 10 Version Number

Windows 10: KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - March 19 - Similar Threads - KB4346088 Intel Microcode

KB4494454 Intel Microcode Updates for Windows 10 v1507 - March 10

KB4346088 Intel Microcode Updates for Windows 10 v1507 - Aug. 13

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KB4346088 Intel Microcode Updates for Windows 10 v1507 - April 5

KB4346085 Intel Microcode Updates for Windows 10 v1709 - March 19

KB4346084 Intel Microcode Updates for Windows 10 v1803 - March 19

KB4346088 Intel Microcode Updates for Windows 10 v1507 - November 27

KB4346088 Intel microcode updates for Windows 10 v1507 - August 21

KB4091666 Intel microcode updates for Windows 10 v1507

KB4346088 Intel Microcode Updates for Windows 10 v1507 - Aug. 13

KB4346088 Intel Microcode Updates for Windows 10 v1507 - June 11

KB4346088 Intel Microcode Updates for Windows 10 v1507 - April 5

KB4346088 Intel Microcode Updates for Windows 10 v1507 - November 27

INTEL MICROCODES UPDATES KB4346088 FOR WINDOWS 10 RTM ONLY UPDATED 25-08-2018

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