What’s Vulnerable › Vulnerabilities

CVE-2023-21774: Windows Kernel 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: 2023-01-10 · updated 2026-06-17
• Weakness: CWE-416

Description

Windows Kernel Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1607: all versions
• Microsoft Windows 10: all versions
• Microsoft Windows 10 20H2: all versions
• Microsoft Windows 10: all versions
• Microsoft Windows 10: all versions
• Microsoft Windows 11 21H2: all versions
• Microsoft Windows 11: all versions
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: all versions
• Microsoft Windows RT 8.1: all versions
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: all versions
• Microsoft Windows Server 2019: all versions
• Microsoft Windows Server 2022: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21774
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21774

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