Executive brief
Windows Storage Spaces Controller contains a stack-based buffer overflow vulnerability that allows an authorized local attacker to gain elevated system privileges. This vulnerability could enable an authenticated user to escalate from standard user to administrator level, potentially compromising the entire system and sensitive data stored on it.
Technical details
A stack-based buffer overflow exists in the Windows Storage Spaces Controller component. The vulnerability requires the attacker to have valid local system credentials (authorization as a local user). By exploiting this memory corruption flaw, an authenticated attacker can execute arbitrary code with elevated privileges on the affected system. The attack vector is local only, meaning the attacker must have direct or authenticated access to the machine. A patch or security update from Microsoft is expected to address this vulnerability.
Affected products
- Microsoft Windows <UNKNOWN>
Timeline
- 2026-09-08: disclosed