Findings

CVE-2026-27911

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate pri…

Published Apr 14, 2026 · updated Oct 14, 2026 · microsoft windows 10 1607

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 14, 2026 · NIST NVD

    Detected

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

  2. Oct 14, 2026 · NIST NVD

    Updated

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

Affected

  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 21h2version unspecified
  • cpe microsoft/windows 10 22h2version unspecified

Sources

  • CVE.orgCVE-2026-27911

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-27911

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDCVE-2026-27911

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

    nvd.nist.gov

References