CVE-2025-53139 Windows Hello Security Feature Bypass Vulnerability
An unauthorized local attacker can bypass Windows Hello security features due to cleartext transmission of sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53139?
CVE-2025-53139 is a high-severity vulnerability in Microsoft Windows 10 21h2, published on 14 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Cleartext transmission of sensitive information in Windows Hello allows an unauthorized attacker to bypass a security feature locally.
Weakness: CWE-319
Which versions are affected by CVE-2025-53139?
It affects 7 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2 and 1 more.
How do I fix CVE-2025-53139?
No fix has been published for CVE-2025-53139 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-53139 being exploited?
There is no known exploitation of CVE-2025-53139 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 21h2
- CVE-2025-21333 Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow
- CVE-2025-21334 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2025-21335 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2026-42904 Windows TCP/IP Elevation of Privilege Vulnerability
- CVE-2026-105733 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-6mcj-8vj2-8vvq.