CVE-2026-44803
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk36th percentile - higher than 36% of all known CVEs
Summary
An integer overflow vulnerability in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
Risk Assessment
An attacker could exploit this to escalate privileges and execute code in kernel context, potentially leading to full system compromise.
Recommendation
Install the latest security updates for Windows available through Windows Update.
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-2026-33104High
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.
Original NVD description (English source)
Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.