CVE-2025-54091 Windows Hyper-V Elevation of Privilege Vulnerability
An integer overflow in Windows Hyper-V allows a local attacker to elevate privileges, requiring a security patch.
- 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-2025-54091?
CVE-2025-54091 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 9 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Integer overflow or wraparound in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
Which versions are affected by CVE-2025-54091?
It affects 14 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 8 more.
How do I fix CVE-2025-54091?
No fix has been published for CVE-2025-54091 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-54091 being exploited?
There is no known exploitation of CVE-2025-54091 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-63v4-wjq3-45mp.