High [CVE-2025-29820] Microsoft Word Remote Code Execution Vulnerability
This high-severity Microsoft Server advisory covers CVE-2025-29820 affecting Microsoft SharePoint Enterprise Server 2016.
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Summary
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Affected product named by the advisory: Microsoft SharePoint Enterprise Server 2016.
- Microsoft 365 Apps for Enterprise 16.0.1 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office 2016 16.0.0 before 16.0.5495.1002
- Microsoft Office 2019 19.0.0 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office LTSC 2021 16.0.1 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office LTSC 2024 16.0.0 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office LTSC for Mac 2021 16.0.1 before 16.96.25041326
- Microsoft Office LTSC for Mac 2024 16.0.0 before 16.96.25041326
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5495.1002
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- https://aka.ms/OfficeSecurityReleases
- 16.0.5495.1002
- 16.96.25041326
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: https://aka.ms/OfficeSecurityReleases, 16.0.5495.1002, 16.96.25041326. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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