CVE-2026-50354: Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Other sources
Windows Kernel 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 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9339Patch KB5099535 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9020Patch KB5099538 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2525Patch KB5101649
Event History
Frequently Asked Questions
What is the severity of CVE-2026-50354?
CVE-2026-50354 has a severity score of 7.1, categorized as high.
How do I fix CVE-2026-50354?
To mitigate CVE-2026-50354, ensure that your Windows operating system is fully updated with the latest security patches from Microsoft.
What systems are affected by CVE-2026-50354?
CVE-2026-50354 affects multiple versions of Microsoft Windows, including Windows 10, Windows 11, and various iterations of Windows Server.
What type of vulnerability is CVE-2026-50354?
CVE-2026-50354 is classified as a use after free vulnerability that allows privilege escalation.
Can an attacker exploit CVE-2026-50354 remotely?
No, CVE-2026-50354 requires local access, as it allows an authorized attacker to elevate privileges on the system.