Vulnerabilities
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.
What happened
Microsoft identified a flaw in the Windows License Manager that can be exploited by a local user to elevate privileges to SYSTEM level.
Impact
- Local attackers can gain full control of the affected machine.
- Potential for lateral movement within a network if credentials are harvested.
Who is affected
All Windows 10 and Windows 11 installations that have not applied the latest cumulative update containing the fix.
What to do
- Verify that the latest Windows updates are installed; apply the patch as soon as it becomes available.
- Limit local user privileges and enforce least‑privilege principles.
- Monitor for unusual process creation or attempts to access the License Manager service.
Related vulnerabilities
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