Windows Domain Name Service Remote Code Execution Vulnerability

HighVendor CVSS 8.8 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

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Summary

Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network.

Products covered

Windows 11 Version 26H2 for ARM64-based Systems
Windows 11 Version 26H2 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)

Show 24 more products

Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows Server 2025 (Server Core installation)
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2025
Windows 11 version 26H1 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

Remediation

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

Vendor-listed fixes

10.0.26300.9711
10.0.17763.9376
10.0.20348.5761
10.0.19044.7807
10.0.19045.7807
10.0.26100.33650
10.0.26200.9711
10.0.22631.7652

Show 5 more fixes

10.0.26100.9711
10.0.28000.3231
10.0.14393.9612
6.2.9200.26434
6.3.9600.23470

CVEs in this advisory 1

CVE-2026-112727

Updates

Nov 10, 2026 at 8:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Nov 10, 2026 at 8:15 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.

Source

Details collected from Microsoft Security Response Center.

Vendor: Microsoft Security Response Center
Advisory ID: CVE-2026-112727
Last source check: Nov 10, 2026 at 8:15 PM UTC

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Summary

Products covered

Remediation

Vendor-listed fixes

CVEs in this advisory 1

Updates

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