Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.

INFO

Published Date :

2026-01-13T17:56:50.882Z

Last Modified :

2026-01-20T23:04:00.485Z

Source :

microsoft
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21221 vulnerability.

Vendors Products
Microsoft
  • Windows 11 24h2
  • Windows 11 24h2
  • Windows 11 25h2
  • Windows 11 25h2
  • Windows Server 2025
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21221.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21221 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
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Scope
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Integrity Impact
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