CVE-2026-35417: Windows Win32k Elevation of Privilege Vulnerability
Access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Other sources
Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
— NVD
Windows Win32k 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 10.0.26100.32860Fixed in 10.0.26100.32772Patch KB5087423 - Upgrade
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Fixed in 10.0.28000.2113Patch KB5089548 - Upgrade
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Fixed in 10.0.26100.8457Fixed in 10.0.26100.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.25398.2330Patch KB5087541 - Upgrade
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Fixed in 10.0.22631.7079Patch KB5087420 - Upgrade
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Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
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Fixed in 10.0.26200.8457Fixed in 10.0.26200.8390Patch KB5089466 - Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.19044.7291Patch KB5087544 - Upgrade
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Fixed in 10.0.20348.5139Fixed in 10.0.20348.5074Patch KB5087424 - Upgrade
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Fixed in 10.0.17763.8755Patch KB5087538
Event History
Frequently Asked Questions
What is the severity of CVE-2026-35417?
CVE-2026-35417 is considered a high-severity elevation of privilege vulnerability in Microsoft Windows.
How do I fix CVE-2026-35417?
To fix CVE-2026-35417, apply the necessary security updates provided by Microsoft for the affected Windows versions.
What products are affected by CVE-2026-35417?
CVE-2026-35417 affects multiple versions of Microsoft Windows, including Windows 10, Windows 11, and Windows Server.
Can CVE-2026-35417 be exploited remotely?
CVE-2026-35417 requires local access for exploitation, making it a local elevation of privilege vulnerability.
What type of vulnerability is CVE-2026-35417?
CVE-2026-35417 is classified as a type confusion vulnerability in the Windows Win32k component.