What’s Vulnerable › Vulnerabilities

CVE-2024-20686: Win32k Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-09 · updated 2026-06-17
• Weakness: CWE-591

Description

Win32k Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): all versions
• Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.643 — fixed in 10.0.25398.643

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.643. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20686
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20686

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