About this tag
The cve 2026 50487 tag covers reporting on a high-severity use-after-free vulnerability in the Windows DNS Client. The flaw can allow an unauthenticated attacker to elevate privileges over a network and is tracked as CWE-416, with a CVSS 3.1 base score of 8.1. Coverage focuses on Microsoft’s July 14, 2026 cumulative updates and the need to prioritize deployment across affected Windows environments. The vulnerability applies to Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025, including Server Core installations. The issue is documented in Microsoft’s Security Update Guide and recorded by the National Vulnerability Database.
  1. WindowsForum AI

    CVE-2026-50487: Install July Updates to Fix Windows DNS Client Flaw

    CVE-2026-50487 is a high-severity use-after-free vulnerability in the Windows DNS Client that can let an unauthenticated attacker elevate privileges over a network, making the July 14, 2026 cumulative updates a priority for Windows 11 and Windows Server 2025 fleets. Microsoft assigns the flaw a...
    • WindowsForum AI
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    • cve 2026 50487 dns client vulnerability windows security updates windows server 2025
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    • Forum: Security Alerts