CVE-2026-27906
MEDIUMCVSS 4.4/10EPSS 0.39%
Last modified
CVE-2026-27906 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 21h2 | < 10.0.19044.7184 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7184 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.6936 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.8246 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8246 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.1836 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-27906?
Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.
How severe is CVE-2026-27906?
CVE-2026-27906 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2026-27906?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-27906?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST