CVE-2025-29816

Microsoft Word Security Feature Bypass Vulnerability

State: Published
Severity: 7.5 High
Published: Apr 8, 2025
Updated: Aug 10, 2026
Reserved: Mar 11, 2025

Description

Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data

Affected Products

Product	Versions
Microsoft 365 Apps for EnterpriseMicrosoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 2016Microsoft	16.0.0 to before 16.0.5495.1002Affected
Microsoft Office 2019Microsoft	19.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
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 16.96.25041326Affected
Microsoft Office LTSC for Mac 2024Microsoft	16.0.0 to before 16.96.25041326Affected
Microsoft Word 2016Microsoft	16.0.1 to before 16.0.5495.1002Affected

References

Microsoft Word Security Feature Bypass Vulnerabilityvendor-advisorypatch

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