CVE-2025-29816

HIGH

Published Apr 8, 2025 Modified Jul 9, 2025 CWE-349

Description

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

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-349 CWE-349

Affected Products

Vendor	Product	Versions
microsoft	365_apps	All
microsoft	office	All
microsoft	office	All
microsoft	office_long_term_servicing_channel	All
microsoft	office_long_term_servicing_channel	All
microsoft	office_long_term_servicing_channel	All
microsoft	office_long_term_servicing_channel	All
microsoft	word	All

References

Advisories & Patches

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29816

Frequently Asked Questions

What is CVE-2025-29816? +

Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-29816? +

CVE-2025-29816 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-29816? +

CVE-2025-29816 affects products from microsoft, specifically: 365_apps, office, office_long_term_servicing_channel, word. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-29816? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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