What’s Vulnerable › Vulnerabilities

CVE-2022-26939: Storage Spaces Direct Elevation of Privilege Vulnerability

• Severity: medium (CVSS 4.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-10 · updated 2026-06-17

Description

Storage Spaces Direct Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows Server: 20h2
• Microsoft Windows Server 2016: all versions
• Microsoft Windows Server 2019: all versions
• Microsoft Windows Server 2022: all versions
• Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.5125 — fixed in 10.0.14393.5125
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.2928 — fixed in 10.0.17763.2928
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.707 — fixed in 10.0.20348.707
• Microsoft Windows Server version 20H2: from 10.0.0 before 10.0.19042.1706 — fixed in 10.0.19042.1706

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2016 10.0.14393.5125; Microsoft Windows Server 2019 10.0.17763.2928; Microsoft Windows Server 2022 10.0.20348.707; Microsoft Windows Server version 20H2 10.0.19042.1706. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26939
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26939

Get alerted when CVE-2022-26939 or the next vulnerability affects your stack