CVE-2026-62888: Windows DWM Core Library Elevation of Privilege Vulnerability
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Other sources
Windows DWM Core Library 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 10.0.22631.7517Patch KB5120240 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7663Patch KB5120249 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7663Patch KB5120249
Event History
Frequently Asked Questions
What is the severity of CVE-2026-62888?
CVE-2026-62888 has a severity rating of high with a score of 7.8.
How do I fix CVE-2026-62888?
To fix CVE-2026-62888, ensure your Windows operating system is updated with the latest security patches from Microsoft.
What type of vulnerability is CVE-2026-62888?
CVE-2026-62888 is classified as a use after free vulnerability in the Windows DWM Core Library.
Who is affected by CVE-2026-62888?
CVE-2026-62888 affects users of Microsoft Windows 10, Windows 11, Windows Server 2022, and Windows Server 2025.
Can CVE-2026-62888 be exploited remotely?
CVE-2026-62888 requires local access for exploitation, meaning an attacker must have local access to the system.