Critical [CVE-2023-21716] Microsoft Word Remote Code Execution Vulnerability
This critical-severity Microsoft Server advisory covers CVE-2023-21716 affecting Microsoft SharePoint Enterprise Server 2013 Service Pack 1, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Foundation 2013 Service Pack 1.
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Summary
Microsoft Word Remote Code Execution Vulnerability
Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2013 Service Pack 1; Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Foundation 2013 Service Pack 1; Microsoft SharePoint Server 2019; and 2 more.
Affected products named by the advisory: Microsoft SharePoint Server Subscription Edition; SharePoint Server Subscription Edition Language Pack.
- Microsoft 365 Apps for Enterprise 16.0.1 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office 2019 19.0.0 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office 2019 for Mac 16.0.0 before 16.70.23021201
- Microsoft Office LTSC 2021 16.0.1 before https://aka.ms/OfficeSecurityReleases
- Microsoft Office LTSC for Mac 2021 16.0.1 before 16.70.23021201
- Microsoft Office Online Server 16.0.1 before 16.0.10395.20001
- Microsoft Office Web Apps Server 2013 Service Pack 1 15.0.1 before 15.0.5529.1000
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.0 before 15.0.5529.1000
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5383.1000
- Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.0 before 15.0.5529.1000
- Microsoft SharePoint Server 2019 16.0.0 before 16.0.10395.20001
- Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.15601.20478
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- https://aka.ms/OfficeSecurityReleases
- 16.70.23021201
- 16.0.10395.20001
- 15.0.5529.1000
- 16.0.5383.1000
- 16.0.15601.20478
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: https://aka.ms/OfficeSecurityReleases, 16.70.23021201, 16.0.10395.20001, 15.0.5529.1000, 16.0.5383.1000, 16.0.15601.20478. 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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