Executive brief
Desktop Window Manager is a core Windows service that handles visual effects and window rendering. A heap-based buffer overflow in this component could allow an authenticated attacker to execute arbitrary code with elevated privileges, potentially compromising system security and enabling full control of the affected computer.
Technical details
A heap-based buffer overflow vulnerability exists in Microsoft Windows Desktop Window Manager (dwm.exe). The vulnerability requires an authenticated attacker to trigger malicious input that overflows a heap buffer, potentially leading to arbitrary code execution with elevated privileges. The attack vector is local and requires prior authentication or user interaction. No active exploitation in the wild has been reported at this time. Microsoft has released patches to address this vulnerability.
Affected products
- Microsoft Windows
Timeline
- 2026-08-11: disclosed
- 2026-08-11: patched