CVE-2026-50688
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk75th percentile - higher than 75% of all known CVEs
Summary
A Use-After-Free vulnerability in the Windows kernel allows an authorized attacker to elevate privileges locally. The issue stems from improper memory management in the kernel, potentially leading to arbitrary code execution in kernel context.
Risk Assessment
An attacker with limited privileges could gain full control over the system, enabling malware installation, data theft, or lateral movement to other systems in the network.
Recommendation
Apply the security update released by Microsoft as part of the monthly cumulative patch immediately. Before installing the update, restrict trusted local user accounts.
Other vulnerabilities in Windows Kernel
See all- CVE-2026-97803High
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96929High
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96913High
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96868High
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96317High
Use-after-free vulnerability in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96312High
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-96216High
A use-after-free vulnerability in Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-88141High
A use after free vulnerability in the Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-88139High
A use after free vulnerability in the Windows Kernel allows an authorized attacker to elevate privileges locally.
- CVE-2026-88134High
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS