High severity8.4NVD Advisory· Published May 12, 2026· Updated May 13, 2026
CVE-2026-40364
CVE-2026-40364
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
8- Microsoft’s agentic security system found four critical Windows RCE flawsHelp Net Security · May 13, 2026
- Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE FlawsThe Hacker News · May 13, 2026
- It's Patch Tuesday for Microsoft & Not a Zero-Day In SightDark Reading · May 12, 2026
- Microsoft Patch Tuesday for May 2026 — Snort rules and prominent vulnerabilitiesCisco Talos Intelligence · May 12, 2026
- Microsoft May 2026 Patch Tuesday: Many fixes, but no zero-daysHelp Net Security · May 12, 2026
- Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-daysBleepingComputer · May 12, 2026
- Microsoft Patches 137 VulnerabilitiesSecurityWeek · May 12, 2026
- Microsoft’s May 2026 Patch Tuesday Addresses 118 CVEs (CVE-2026-41103)Tenable Blog · May 12, 2026