CVE-2025-27475 Windows Update Stack Elevation of Privilege Vulnerability
An authorized local attacker can elevate privileges by accessing sensitive data stored in improperly locked memory within the Windows Update Stack.
- 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-2025-27475?
CVE-2025-27475 is a high-severity vulnerability in Microsoft Windows 11 22h2, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
Weakness: CWE-591
Which versions are affected by CVE-2025-27475?
It affects 3 products.
Products include Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2.
How do I fix CVE-2025-27475?
No fix has been published for CVE-2025-27475 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-27475 being exploited?
There is no known exploitation of CVE-2025-27475 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 11 22h2
- CVE-2024-49117 Windows Hyper-V Remote Code Execution Vulnerability
- CVE-2024-21435 Windows OLE Remote Code Execution Vulnerability
- CVE-2025-24084 Windows Subsystem for Linux (WSL2) Kernel Remote Code Execution Vulnerability
- CVE-2025-33054 Remote Desktop Spoofing Vulnerability
- CVE-2025-29828 Windows Schannel Remote Code Execution Vulnerability
Sources
Also known as GHSA-jjwr-7vqh-8gf4.