CVE-2026-55132 HIGH

CVE-2026-55132: Microsoft Word Remote Code Execution Vulnerability

Vendor Microsoft
Product Microsoft 365 Apps for Enterprise
Weakness CWE-415
Published July 14, 2026
Last update July 24, 2026

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Key dates

02Disclosure timeline

July 14, 2026 CVE published
July 24, 2026 Record updated