CVE-2025-26644 json
Windows Hello Spoofing Vulnerability
published 2025-04-08 19 mo ago modified 2026-08-10 2 mo ago also EUVD-2025-10237
- cvss
- 5.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
Patch / fix
- Microsoft Windows 10 Version 1809 10.0.17763.7136
- Microsoft Windows 10 Version 21H2 10.0.19044.5737
- Microsoft Windows 10 Version 22H2 10.0.19045.5737
- Microsoft Windows 11 version 22H2 10.0.22621.5189
- Microsoft Windows 11 version 22H3 10.0.22631.5189
- Microsoft Windows 11 Version 23H2 10.0.22631.5189
- Microsoft Windows 11 Version 24H2 10.0.26100.3775
- Microsoft Windows Server 2019 10.0.17763.7136
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.7136
- Microsoft Windows Server 2025 10.0.26100.3775
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.3775
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 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 |
| CNA | 3.1 | 5.1 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Microsoft Windows 10 Version 22H2
- Microsoft Windows 11 version 22H2
- Microsoft Windows 11 version 22H3
- Microsoft Windows 11 Version 23H2
- Microsoft Windows 11 Version 24H2
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
Classification
- Weakness
-
- CWE-1039 Inadequate Detection or Handling of Adversarial Input Perturbations in Automated Recognition Mechanism
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-26644
vendor-advisory, patch
Sources
- CVE List CVE-2025-26644
- NVD CVE-2025-26644
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.