CVE-2026-33104
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
Published Apr 14, 2026 · updated Oct 14, 2026 · Microsoft Windows 10 Version 1607
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX 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.
Apr 14, 2026 · NIST NVD
Detected
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
Oct 14, 2026 · NIST NVD
Updated
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX 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
- vendor Microsoft Windows 10 Version 1607version unspecified
- vendor Microsoft Windows 10 Version 1809version unspecified
- vendor Microsoft Windows 10 Version 21H2version unspecified
- vendor Microsoft Windows 10 Version 22H2version unspecified
- vendor Microsoft Windows 11 Version 23H2version unspecified
- vendor Microsoft Windows 11 Version 24H2version unspecified
- vendor Microsoft Windows 11 Version 25H2version unspecified
- vendor Microsoft Windows 11 version 23H2version unspecified
Sources
- CIRCL Vulnerability LookupVulnerability recordCVE-2026-33104
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
vulnerability.circl.lu - CVE.orgVulnerability recordCVE-2026-33104
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-33104
30-day exploitation probability 0.2%
first.org - NIST NVDVulnerability recordCVE-2026-33104
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
nvd.nist.gov