CVE-2026-50423
HighCVSS 7.8Exploitation Probability (EPSS)
High risk84th percentile - higher than 84% of all known CVEs
Summary
The Windows kernel has an improper access control vulnerability that allows an authorized attacker to elevate privileges locally.
Risk Assessment
The organization faces the risk that an authorized user (e.g., an employee) could gain higher privileges, potentially leading to unauthorized data access or malware installation.
Recommendation
Apply the security update from Microsoft that addresses this vulnerability. Prioritize critical systems.
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)
Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS