What’s Vulnerable › Vulnerabilities

CVE-2021-38626: Windows Kernel Elevation of Privilege Vulnerability

• Severity: medium (CVSS 4.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-15 · updated 2026-08-10
• Weakness: CWE-269

Description

Windows Kernel Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows Server 2008: all versions
• Microsoft Windows Server 2008 Service Pack 2: from 6.0.6003.0 before 6.0.6003.21218 — fixed in 6.0.6003.21218

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2008 Service Pack 2 6.0.6003.21218. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38626
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38626

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