Vulnerability in Microsoft Windows 10 Version 1809
CVE-2025-26644
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
EPSS: 0.003 (57.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C.
Affected products
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
- Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
- Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
- Microsoft Windows Server 2019 — versions 10.0.17763.0
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.17763.0
- Microsoft Windows Server 2025 — versions 10.0.26100.0
Weakness classification (CWE)
References
- Windows Hello Spoofing Vulnerability (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2025-26644?
- CVE-2025-26644 is a medium-severity vulnerability in Microsoft Windows 10 Version 1809, classified under CWE-1039. CVSS score: 5.1/10. Published 2025-04-08.
- How severe is CVE-2025-26644?
- Medium severity. CVSS v3 base score is 5.1 out of 10.