Advisory severityHigh7.5Microsoft Server

High [CVE-2026-62787] Windows DNS Server Remote Code Execution Vulnerability

This high-severity Microsoft Server advisory covers CVE-2026-62787 affecting Windows Server 2019, Windows Server 2022, Windows Server 2025.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-62787 Source published Aug 11, 2026Source updated Aug 11, 2026

VulniPulse record published Aug 11, 2026Record updated Aug 16, 2026

CVE-2026-62787

Affected products & platforms

Microsoft ServerWindows Server

Open source advisory

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Summary

Windows DNS Server Remote Code Execution Vulnerability

Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more.

Affected products named by the advisory: Windows Server 2012 R2.

Affected versions

Windows 10 Version 1607 10.0.14393.0 before 10.0.14393.9418
Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.9115
Windows Server 2012 6.2.9200.0 before 6.2.9200.26279
Windows Server 2012 (Server Core installation) 6.2.9200.0 before 6.2.9200.26279
Windows Server 2012 R2 6.3.9600.0 before 6.3.9600.23337
Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 before 6.3.9600.23337
Windows Server 2016 10.0.14393.0 before 10.0.14393.9418
Windows Server 2016 (Server Core installation) 10.0.14393.0 before 10.0.14393.9418
Windows Server 2019 10.0.17763.0 before 10.0.17763.9115
Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.9115
Windows Server 2022 10.0.20348.0 before 10.0.20348.5499
Windows Server 2025 10.0.26100.0 before 10.0.26100.33296

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

KB5120238 (build 10.0.17763.9121)
KB5120242 (build 10.0.20348.5499)
KB5120229 (build 10.0.20348.5440)
KB5120233 (build 10.0.26100.33296)
KB5120228 (build 10.0.26100.33222)
KB5120418 (build 10.0.14393.9418)
KB5120386 (build 6.2.9200.26280)
KB5120385 (build 6.3.9600.23338)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Install the applicable security update for your platform: KB5120238, KB5120242, KB5120229, KB5120233, KB5120228, KB5120418 (see the Microsoft Update Catalog).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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