CVE-2026-63525 HIGH

CVE-2026-63525: Microsoft Office Word Remote Code Execution Vulnerability

Vendor Microsoft
Product Microsoft 365 Apps for Enterprise
Weakness CWE-197
Published August 11, 2026
Last update August 14, 2026
View on NVD All CVEs

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

Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Key dates

02Disclosure timeline

August 11, 2026 CVE published
August 14, 2026 Record updated