## Summary
CVE-2026-65787 describes a heap-based buffer overflow in Windows Desktop Window Manager (DWM) that can be triggered by an authorized local attacker to achieve local privilege escalation. The NVD indicates the impact includes confidentiality, integrity, and availability loss.
## Technical Details
- Vulnerability type: heap-based buffer overflow (CWE-122).
- Affected component: Desktop Window Manager (DWM).
- Attack vector: local (AV:L) with low complexity (AC:L) and no user interaction (UI:N).
- Privileges required: PR:L (an attacker already has some level of authorization).
## Affected
- Windows Desktop Window Manager (DWM) (exact product/version ranges not provided in the available data).
## Impact
- Privilege escalation from an authorized local context.
- Potential for full compromise of security properties as reflected by NVD impact: C:H, I:H, A:H.
## Mitigation
1. Apply the vendor’s security update/patch for the DWM heap overflow as soon as it is released (no patch details were available in the provided material).
2. Reduce exposure by limiting which users/processes have the authorization level required by PR:L.
3. Monitor for local exploitation attempts and abnormal behavior around DWM-related processes (specific detection indicators were not available in the provided material).
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-122