CVE-2026-33104
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
A race condition in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally via concurrent execution of a shared resource without proper synchronization.
Risk Assessment
An authorized attacker could escalate privileges, potentially leading to full system compromise.
Recommendation
Install the security update from Microsoft for the affected component.
Other vulnerabilities in Windows Win32K - GRFX
See all- CVE-2026-40403High
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.
- CVE-2026-34333High
A use after free vulnerability in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
- CVE-2026-34331High
There is a concurrent execution issue in Windows Win32K - GRFX due to improper synchronization, leading to a race condition. This allows an authorized attacker to elevate privileges locally.
- CVE-2025-26687High
A use after free vulnerability in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-56176High
An out-of-bounds read vulnerability in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
- CVE-2026-44812High
An integer overflow vulnerability in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
- CVE-2026-44803High
An integer overflow vulnerability in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.