CVE-2026-83895
MediumCVSS 6.8Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
A heap-based buffer overflow in the Windows Win32 Kernel Subsystem allows an unauthorized attacker to elevate privileges via a physical attack.
Risk Assessment
A physical attack can lead to full system compromise, including gaining administrator privileges, posing a serious threat to system integrity.
Recommendation
Install the latest security patches and secure physical access to devices, e.g., through hardware access controls.
Other vulnerabilities in Windows Win32 Kernel Subsystem
See all- CVE-2025-24983HighActively exploited
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- CVE-2022-41113High
Vulnerability in the Windows Win32 Kernel Subsystem allows elevation of privilege. An attacker could exploit it to gain higher privileges on the system.
- 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.
Original NVD description (English source)
Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an unauthorized attacker to elevate privileges with a physical attack.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS