Windows 10: The system detected an overrun of a stack-based buffer in SearchUI.exe

Today I tried to disable Cortana as it was always in my Task Manager for no reason, so I simply renamed "SearchUI.exe" to "...SearchUI.exe" so that Cortana won't start anymore. Right after that I noticed that the windows search engine wasn't working so I reset "SearchUI.exe" to its normal name so it could start normally, however I noticed it wasn't starting Cortana automatically so I I tried to run "SearchUI.exe" manually, and the error below appeared. I'm attaching two screenshots, one with the error that appeared on my computer, but in Portuguese my native language and the other of the sam

:)

 

LogonUI.exe : the system detected an overrun of a stack-based buffer

i got this recently "logonui.exe the system detected an overrun of a stack-based buffer" may you explain why that error happened?

 

Help with this? 'The system detected an overrun of a stack-based...'

On a Windows 10 desktop today there was this error message...

“The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application“

Any suggestion as to what the problem is and how to rectify the problem?

 

System reports "detected an overrun of a stack-based buffer" in iexplorer

We ran into a system alert box (screenshot as below) complaining "an overrun of a stack-based buffer" in iexplorer randomly.





The OS is Windows Server 2019 and is in zh-CN language. The error message can be translated as "The system detected an overrun of a stack-based
buffer in this application. This overrun could potentially allow a malicious user to gain control of this application".

Iexplorer looks functioning normal after dismissing the alert, but it's really annoying to our users.

Anyone can help with

1) why this happens? how can it be fixed?

2) if it's a but from IE or system, how can we avoid this alert?

3) is it possible to disable system from prompting this kind of alert?

Thanks for any suggestions or hints.