Findings

CVE-2026-33840

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

Published May 12, 2026 · updated Jun 17, 2026 · microsoft windows 11 24h2

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

Affected

  • cpe microsoft/windows 11 24h2version unspecified
  • cpe microsoft/windows 11 25h2version unspecified
  • cpe microsoft/windows 11 26h1version unspecified
  • cpe microsoft/windows server 2025version unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-33840

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33840

    Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

    nvd.nist.gov

References