CVE-2026-66809 MEDIUM

CVE-2026-66809: Microsoft Office Graphics Component Information Disclosure Vulnerability

Vendor Microsoft
Product Microsoft 365 Apps for Enterprise
Weakness CWE-125
Published August 11, 2026
Last update August 14, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/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 allows an unauthorized attacker to disclose information locally.

Key dates

02Disclosure timeline

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