CVE-2026-57095: Win32k Elevation of Privilege Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an unauthorized attacker to elevate privileges locally.
Other sources
Win32k Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
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Fixed in 10.0.17763.9020Patch KB5099538 - Upgrade
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Fixed in 6.2.9200.26226Patch KB5099445 - Upgrade
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Fixed in 10.0.14393.9339Patch KB5099535 - Upgrade
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Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
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Fixed in 6.3.9600.23291Patch KB5099444 - Upgrade
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Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
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Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
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Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The attack vector is local. The CVSS data indicates no prior privileges or user interaction are required, but the attacker must be able to execute locally on the affected system.
Which systems are identified as affected?
The listed affected software includes Microsoft Windows 10, Windows 11, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2025, Windows 10 21H2, and Windows 10 22H2.