Vulnerability · Published Apr 8, 2025 · Assigned by microsoft
CVE-2025-26635Windows Hello Security Feature Bypass Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in Windows 10 Version 1809 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.5%top 25.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Weak authentication in Windows Hello allows an authorized attacker to bypass a security feature over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – before 10.0.17763.7136 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – before 10.0.19044.5737 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – before 10.0.19045.5737 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.5189 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – before 10.0.22631.5189 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – before 10.0.22631.5189 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – before 10.0.17763.7136 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – before 10.0.17763.7136 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.3453 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – before 10.0.25398.1551 |
Weakness: CWE-1390 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/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