CVE-2026-70271
HighCVSS 7.0Summary
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
Risk Assessment
Risk of system takeover by an authorized user, potentially leading to full system compromise.
Recommendation
Apply available security updates for Windows.
Other vulnerabilities in Windows Win32 Kernel Subsystem
See all- CVE-2026-96853Medium
Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
- CVE-2026-96848Medium
Buffer over-read in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
- CVE-2026-96249High
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2026-85858High
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2026-85804High
A use after free in the Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2026-85802High
A use after free in the Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2026-83909Medium
Exposure of sensitive system information to an unauthorized control sphere in the Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
- CVE-2026-83901High
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2026-83897Medium
A vulnerability in the Windows Win32 Kernel Subsystem allows exposure of sensitive system information to an unauthorized control sphere. An authorized attacker can disclose information locally.
- CVE-2026-83895Medium
A heap-based buffer overflow in the Windows Win32 Kernel Subsystem allows an unauthorized attacker to elevate privileges via a physical attack.
Original NVD description (English source)
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS