SB2026082150 - Information disclosure in Microsoft Word
Published: August 21, 2026
Security Bulletin ID
SB2026082150
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2026-70105)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper input validation in Microsoft Office Word when parsing a crafted document. A remote attacker can trick the victim into opening a specially crafted file to disclose sensitive information.
The disclosed information may include small portions of heap memory, and the Preview Pane is not an attack vector.
Remediation
Install update from vendor's website.