CVE-2026-105731: Microsoft Office Graphics Component Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Oct

Released

2026-10-13

Description

Use of uninitialized resource in Microsoft Graphics Component allows an authorized attacker to disclose information locally.

FAQ

What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory and kernel memory - unintentional read access to memory contents in kernel space from a user mode process.

Affected Products (1)

Microsoft Office

• Microsoft Office for Android

Security Updates (1)

• Release Notes

Acknowledgments

Byzero with Kunlun Lab & Zhiniang Peng with HUST

Revision History

• 2026-10-13: Information published.