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Windows DNS heap-based buffer overflow remote code execution flaw (CVE-2026-41096)

Vulnerability
First reported
Last updated
Happening score
H score 41
1 unique sources, 1 articles

Summary

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Microsoft patched CVE-2026-41096, a heap-based buffer overflow in Windows DNS that could let an unauthorized attacker execute code remotely on vulnerable Windows systems. The flaw carries a CVSS score of 9.8 and affects a widely deployed network service, making the patch important for exposed environments. Microsoft said the issue was fixed in its May 13, 2026 update cycle.

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Timeline

  1. 13.05.2026 13:36 2 articles · 1mo ago

    Microsoft discloses and patches CVE-2026-41096 in Windows DNS

    Initial Disclosure

    Microsoft's May 13, 2026 Patch Tuesday release fixed CVE-2026-41096, a CVSS 9.8 heap-based buffer overflow in Windows DNS that could let an unauthorized attacker execute code over a network by sending a specially crafted DNS response to a vulnerable Windows system.

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