VULNERABILITY INTELLIGENCE
CVE-2026-40420
CVSS score8.8 HIGH
EPSS probability0.21%
CISA KEVNot currently listed
Published2026-05-12
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Description
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
Weakness classification
- CWE-284: Improper Access Control
Primary references
- secure@microsoft.com — Vendor Advisory