CVE-2023-21542 Windows Installer Elevation of Privilege Vulnerability
An attacker can exploit a race condition in Windows Installer to gain elevated privileges on affected Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21542?
CVE-2023-21542 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Installer Elevation of Privilege Vulnerability
Which versions are affected by CVE-2023-21542?
It affects 9 products.
Products include Microsoft Windows 10 1607, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 3 more.
How do I fix CVE-2023-21542?
No fix has been published for CVE-2023-21542 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-21542 being exploited?
There is no known exploitation of CVE-2023-21542 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1607
- CVE-2026-33824 Microsoft Internet Key Exchange (IKE) Service Extensions Double Free
- CVE-2026-21510 Microsoft Windows Shell Protection Mechanism Failure
- CVE-2026-21513 Microsoft MSHTML Framework Protection Mechanism Failure
- CVE-2023-32049 Microsoft Windows Defender SmartScreen Security Feature Bypass
- CVE-2023-29360 Microsoft Streaming Service Untrusted Pointer Dereference
Sources
Also known as GHSA-63g9-mfrc-j793.