Vulnerability · Published Oct 14, 2025 · Assigned by microsoft
CVE-2025-53139Windows Hello Security Feature Bypass Vulnerability
High 7.7
In plain English
A high-severity security flaw in Windows 10 Version 21H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.3%top 78.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Cleartext transmission of sensitive information in Windows Hello allows an unauthorized attacker to bypass a security feature locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – before 10.0.19044.6456 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – before 10.0.19045.6456 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.6060 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – before 10.0.22631.6060 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – before 10.0.22631.6060 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – before 10.0.26100.6899 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – before 10.0.26200.6899 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.6899 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.6899 |
Weakness: CWE-319 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
References
- Windows Hello Security Feature Bypass Vulnerability vendor-advisory, patch