CVE-2026-108434 MEDIUM

CVE-2026-108434: Microsoft Office Word Information Disclosure Vulnerability

Vendor Microsoft
Product Microsoft 365 Apps for Enterprise
Weakness CWE-125
Published October 15, 2026
Last update October 16, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

Key dates

02Disclosure timeline

October 15, 2026 CVE published
October 16, 2026 Record updated