CVE-2025-26644
Windows Hello Spoofing Vulnerability
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Windows Hello Spoofing Vulnerability
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
- Record
CVE-2025-26644- CVSS 3.1
- 5.1 Medium
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 - Weakness
- CWE-1039
- Updated
- 2026-11-02
EUVDEUVD-2025-10237
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
- Record
EUVD-2025-10237- CVSS 3.1
- 5.1 Medium
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2f5r-r4jx-hh42
Automated recognition mechanism with inadequate detection or handling of adversarial input...
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
- Record
GHSA-2f5r-r4jx-hh42- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-1039
- Updated
- 2026-11-02
NVD
Automated recognition mechanism with inadequate detection or handling of adversarial input perturbations in Windows Hello allows an unauthorized attacker to perform spoofing locally.
- Record
CVE-2025-26644- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-1039
- Updated
- 2026-11-02
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)
- microsoft windows 10 1809
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-26644 is a medium vulnerability (CVSS 5.1) in Microsoft Windows 10 Version 1809, published April 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. No source names a fixed version.