Security News > 2021 > November > Zero-day bug in all Windows versions gets free unofficial patch
2021-11-12 12:28
A free and unofficial patch is now available for a zero-day local privilege escalation vulnerability in the Windows User Profile Service that lets attackers gain SYSTEM privileges under certain conditions.
The bad news is that it impacts fully-updated devices running all Windows versions, including Windows 10, Windows 11, and Windows Server 2022.
While Microsoft is still working on a security update to address this zero-day flaw, the 0patch micropatching service has released Thursday a free unofficial patch.
Windows 10 v21H1 updated with October or November 2021 Updates.
Windows 10 v20H2 updated with October or November 2021 Updates.
Windows 10 v1909 updated with October or November 2021 Updates.
News URL
Related news
- New Windows zero-day exposes NTLM credentials, gets unofficial patch (source)
- RomCom hackers chained Firefox and Windows zero-days to deliver backdoor (source)
- RomCom Exploits Zero-Day Firefox and Windows Flaws in Sophisticated Cyberattacks (source)
- Firefox and Windows zero-days exploited by Russian RomCom hackers (source)
- New Windows Server 2012 zero-day gets free, unofficial patches (source)
- Microsoft says premature patch could make Windows Recall forget how to work (source)
- Microsoft December 2024 Patch Tuesday fixes 1 exploited zero-day, 71 flaws (source)
- Week in review: Exploited Ivanti Connect Secure zero-day, Patch Tuesday forecast (source)
- Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws (source)
- Microsoft fixes actively exploited Windows Hyper-V zero-day flaws (source)