CVE-2026-40363

HIGH CVSS 8.4 View on NVD ↗

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published: May 12, 2026 18:17 UTC Modified: May 13, 2026 15:34 UTC