Executive brief
Windows Volume Manager Extension Driver is a system component that manages disk volumes in Microsoft Windows. A heap-based buffer overflow in this driver allows authorized attackers to elevate their privileges from a user account to system-level access, potentially compromising the entire system.
Technical details
A heap-based buffer overflow exists in the Windows Volume Manager Extension Driver, a core Windows driver responsible for volume management operations. The vulnerability requires local access and authorization to trigger, making it a local privilege escalation vulnerability. An authenticated local attacker can exploit this memory corruption flaw to execute arbitrary code with elevated privileges (SYSTEM level). A patch is expected from Microsoft; check MSRC security advisories for patch availability and deployment timelines.
Affected products
- Microsoft Windows
Timeline
- 2026-09-08: disclosed