CVE-2026-70105

Microsoft Word Information Disclosure Vulnerability

State: Published
Severity: 6.5 Medium
Published: Aug 20, 2026
Updated: Oct 30, 2026
Reserved: Aug 3, 2026

Description

Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	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	microsoft

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
Microsoft 365 Apps for EnterpriseMicrosoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 2019Microsoft	19.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 365 for MacMicrosoft	1.0.0 to before 16.112.26081010Affected
Microsoft Office LTSC 2021Microsoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC 2024Microsoft	16.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC for Mac 2021Microsoft	16.0.1 to before 16.112.26081010Affected
Microsoft Office LTSC for Mac 2024Microsoft	16.0.0 to before 16.112.26081010Affected
Microsoft Word 2016Microsoft	16.0.1 to before 16.0.5565.1000Affected

References

Microsoft Word Information Disclosure Vulnerabilityvendor-advisorypatch

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.