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Microsoft Security Response CenterCVE-2026-49169

Windows DNS Server Remote Code Execution Vulnerability

HighVendor CVSS 8.0 / 10 1 CVE Published Jul 14, 2026 at 7:00 AM UTC

Summary

Use after free in DNS Server allows an authorized attacker to execute code over a network.

Products covered

  • Windows Server 2025 (Server Core installation)

  • Windows Server 2025

Remediation

Install KB5099536.

Vendor-listed fixes

  • 10.0.26100.33158

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.