CVE-2025-53139: Windows Hello Security Feature Bypass Vulnerability

Overview

Severity
High (CVSS 7.7)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Category
Security Feature Bypass
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2025-Oct
Released
2025-10-14
EPSS Score
0.03% (percentile: 8.2%)

Description

Cleartext transmission of sensitive information in Windows Hello allows an unauthorized attacker to bypass a security feature locally.

FAQ

What kind of security feature could be bypassed by successfully exploiting this vulnerability? An attacker who successfully exploited this vulnerability could bypass the Windows Hello Facial and Fingerprint Recognition security feature. Where can I find more information about Windows Hello Face Authentication? Please see Windows Hello Face Authentication and/or Windows Hello Fingerprint Authentication for updated details.

Affected Products (16)

Windows

  • Windows 11 Version 25H2 for x64-based Systems
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows Server 2025 (Server Core installation)
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows Server 2025

ESU

  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems

Security Updates (3)

Acknowledgments

<a href="https://www.linkedin.com/in/paragmali/">Parag Mali</a> with <a href="http://www.microsoft.com/">Microsoft</a>, <a href="https://www.linkedin.com/in/paragmali/">Parag Mali</a> with <a href="http://www.microsoft.com/">Microsoft</a>, <a href="https://x.com/_ethicalchaos_">Ceri Coburn</a> with <a href="https://www.netspi.com/">NetSPI</a>

Revision History

  • 2025-10-14: Information published.