CVE-2026-33841: Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow 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 10.0.26100.8457Fixed in 10.0.26100.8390Patch KB5089466 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.32860Fixed in 10.0.26100.32772Patch KB5087423 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2113Patch KB5089548 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.25398.2330Patch KB5087541 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8457Fixed in 10.0.26200.8390Patch KB5089466 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7079Patch KB5087420 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7291Patch KB5087544 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5139Fixed in 10.0.20348.5074Patch KB5087424
Event History
Frequently Asked Questions
What is the severity of CVE-2026-33841?
CVE-2026-33841 has a high severity rating due to its potential for privilege escalation.
How do I fix CVE-2026-33841?
To remediate CVE-2026-33841, ensure that you apply the latest security updates provided by Microsoft for the affected Windows versions.
Which systems are affected by CVE-2026-33841?
CVE-2026-33841 affects multiple versions of Windows 10, Windows 11, and Windows Server products.
Can CVE-2026-33841 lead to remote exploits?
CVE-2026-33841 is a local privilege escalation vulnerability, therefore it cannot be exploited remotely.
Is there any known exploit for CVE-2026-33841?
As of now, there are no publicly known exploits associated with CVE-2026-33841, but it's recommended to apply patches promptly.