Executive brief
Windows Volume Manager Extension Driver contains a heap-based buffer overflow vulnerability that allows an authorized local user to elevate their privileges on affected systems. An attacker with existing access to a computer could exploit this to gain administrative control, potentially compromising system security and access to sensitive data.
Technical details
The vulnerability is a heap-based buffer overflow in the Windows Volume Manager Extension Driver. Attack requires local access and the attacker must be authenticated (authorized) to trigger the vulnerability. Successful exploitation allows privilege escalation from a lower-privileged user context to a higher-privileged level. The attack vector is local, meaning it cannot be exploited remotely over a network. Patches are expected from Microsoft; check MSRC update guidance for remediation.
Affected products
- Microsoft Windows <UNKNOWN>
Timeline
- 2026-09-08: disclosed