CVE-2026-70289
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access could gain elevated privileges, potentially leading to full system compromise.
Recommendation
Apply the latest Windows security updates.
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-2026-70290Medium
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
- CVE-2024-38253High
An elevation of privilege vulnerability in the Windows Win32 Kernel Subsystem.
- CVE-2024-38252High
An elevation of privilege vulnerability in the Windows Win32 Kernel Subsystem.
- CVE-2024-30086High
A vulnerability in the Windows Win32 kernel subsystem allows elevation of privilege. This flaw can be exploited by a local attacker to gain higher privileges on the system.
Original NVD description (English source)
Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.