CVE-2026-87691: Windows Management Services Elevation of Privilege Vulnerability
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
Other sources
Windows Management Services Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected system and have local access. The issue is an elevation of privilege vulnerability, so it is relevant where lower-privileged local users or compromised accounts are present.
Which systems are identified as affected?
The provided data identifies Microsoft Windows 11 and Microsoft Windows Server 2025.
Does exploitation require user interaction or network access?
The supplied vector indicates local access and no user interaction are required. It does not describe remote network exploitation.