CVE-2023-29336

Summary dbcve.org

This is a privilege escalation vulnerability in the Windows win32k.sys kernel-mode driver, which handles window management and graphics operations. Successful exploitation allows a local attacker to elevate from a low-privilege account to kernel-level (SYSTEM) privileges. The vulnerability involves a flaw in how win32k.sys handles certain user-mode requests, potentially through memory corruption or improper validation.

Mitigation

Apply the Microsoft security update for CVE-2023-29336, which patches the win32k.sys driver vulnerability. Prioritize patching systems with direct user access or those exposed as jump servers, as local exploitation is required.