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CVE-2022-30214: Windows DNS Server Remote Code Execution Vulnerability

• Severity: medium (CVSS 6.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-07-12 · updated 2026-06-17
• Weakness: CWE-362

Description

Windows DNS Server Remote Code Execution Vulnerability

Affected products

• Microsoft Windows Server 2016: 20h2
• Microsoft Windows Server 2019: all versions
• Microsoft Windows Server 2022: all versions
• Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.5246 — fixed in 10.0.14393.5246
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.3165 — fixed in 10.0.17763.3165
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.825 — fixed in 10.0.20348.825
• Microsoft Windows Server version 20H2: from 10.0.0 before 10.0.19042.1826 — fixed in 10.0.19042.1826

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2016 10.0.14393.5246; Microsoft Windows Server 2019 10.0.17763.3165; Microsoft Windows Server 2022 10.0.20348.825; Microsoft Windows Server version 20H2 10.0.19042.1826. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30214
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30214

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