Vulnerabilities
CVE-2026-65787: Desktop Window Manager Elevation of Privilege Vulnerability
Microsoft has acknowledged CVE-2026-65787, an elevation of privilege flaw in the Desktop Window Manager (DWM) component of Windows. The issue could allow local attackers to gain higher privileges. Defenders should ensure the latest Windows updates are installed and monitor for vendor advisories.
What happened
Microsoft has publicly acknowledged CVE-2026-65787, a flaw in the Desktop Window Manager (DWM) that could allow an attacker with local access to elevate privileges on a Windows system.
Impact
When exploited, the vulnerability permits a local attacker to gain higher privileges, potentially enabling further compromise of the affected machine. No public exploits have been reported yet, and the issue is currently informational.
What to do
Defenders should:
- Verify that the latest Windows security updates are installed on all endpoints.
- Apply any specific patches released for CVE-2026-65787 as part of the cumulative update.
- Monitor Microsoft’s Security Update Guide and the MSRC for any new mitigation guidance.
- Implement least‑privilege policies to limit local user capabilities.
Related vulnerabilities
CVE-2026-70255: Desktop Window Manager Local Privilege Escalation
A heap-based buffer overflow in Windows Desktop Window Manager allows a local attacker to gain elevated privileges. The flaw affects all Windows systems running DWM and can be mitigated by applying the latest security update. Defenders should verify patch status and monitor for privilege escalation events.
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CVE-2026-70234: Desktop Window Manager Buffer Over-Read Enables Local Information Disclosure
Microsoft identified a buffer over-read in the Desktop Window Manager (DWM) that lets a local attacker read memory beyond intended bounds, potentially exposing sensitive data. The flaw, CVE‑2026‑70234, is fixed in the latest Windows cumulative update. Administrators should apply the patch and verify DWM is updated.
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CVE-2026-102862: SharePoint Elevation of Privilege Vulnerability
Microsoft Office SharePoint is vulnerable to an elevation of privilege flaw (CVE‑2026‑102862) that allows an authenticated attacker to gain higher permissions on a network. The flaw affects SharePoint Server 2013/2016/2019 and SharePoint Online. Defenders should apply the latest cumulative update, audit permissions, and monitor for unauthorized privilege changes.
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Windows License Manager Privilege Escalation Vulnerability (CVE‑2026‑62777)
Microsoft has disclosed a local privilege‑escalation flaw in the Windows License Manager component. The vulnerability could allow an attacker with local access to gain SYSTEM rights. Defenders should monitor for suspicious activity and apply the forthcoming update when available.
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