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CVE-2026-41096

Windows DNS Client Remote Code Execution Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.22631.7079, 10.0.22631.7219, 10.0.26100.8457, 10.0.26200.8457, 10.0.28000.2113, and 2 more
7 proofs of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Microsoft Windows 11 version 23H2

    From 10.0.22631.0 · fixed in 10.0.22631.7079

  • Microsoft Windows 11 Version 23H2

    From 10.0.22631.0 · fixed in 10.0.22631.7219

  • Microsoft Windows 11 Version 24H2

    From 10.0.26100.0 · fixed in 10.0.26100.8457

  • Microsoft Windows 11 Version 25H2

    From 10.0.26200.0 · fixed in 10.0.26200.8457

  • Microsoft Windows 11 version 26H1

    From 10.0.28000.0 · fixed in 10.0.28000.2113

  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

    From 10.0.25398.0 · fixed in 10.0.25398.2330

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.32860

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.32860

References 8

msrc.microsoft.com

GitHub · TwoSevenOneT/CVE-2026-41096-Attack-Surface

GitHub · ZeroDayEvil/CVE-2026-41096-PoC

GitHub · m0n1x90/CVE-2026-41096

GitHub · mrk336/DNS-Mayhem-CVE-2026-41096-Deep-Dive

GitHub · personnumber3377/dns_client_fuzzing

GitHub · satchfunky/CVE-2026-41096-POC

GitHub · wuyou6956-glitch/CVE-2026-41096-POC