CVE-2026-20952

high

Microsoft

CVSS v3 Base Score

8.4

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

Published: January 13, 2026

Last Modified: January 14, 2026

Description

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CWE-416

microsoft 365 appsmicrosoft officemicrosoft office long term servicing channel