# CVE-2025-26644

## Summary

- **CVE ID:** CVE-2025-26644
- **Severity:** MEDIUM
- **CVSS Score:** 5.1 (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)
- **CWE:** CWE-1039
- **Published:** Apr 8, 2025
- **Last Modified:** Aug 10, 2026

## Description

Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.

## Affected Products

- Microsoft — Windows 10 Version 1809 (10.0.17763.0)
- Microsoft — Windows 10 Version 21H2 (10.0.19044.0)
- Microsoft — Windows 10 Version 22H2 (10.0.19045.0)
- Microsoft — Windows 11 version 22H2 (10.0.22621.0)
- Microsoft — Windows 11 version 22H3 (10.0.22631.0)
- Microsoft — Windows 11 Version 23H2 (10.0.22631.0)
- Microsoft — Windows 11 Version 24H2 (10.0.26100.0)
- Microsoft — Windows Server 2019 (10.0.17763.0)
- Microsoft — Windows Server 2019 (Server Core installation) (10.0.17763.0)
- Microsoft — Windows Server 2025 (10.0.26100.0)
- Microsoft — Windows Server 2025 (Server Core installation) (10.0.26100.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26644)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.55%
- **EPSS Percentile:** 44.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._