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9.8Critical

CVE-2023-21716Microsoft Word Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 2019; Microsoft Microsoft Office 2019 for Mac; Microsoft Microsoft Office LTSC 2021 Published: (3 years ago)

Description

Microsoft Word Remote Code Execution Vulnerability

Weakness (CWE): CWE-190

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
microsoft 365 apps 16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 2019 19.0.0 – < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 2019 for Mac 16.0.0 – < 16.70.23021201
Microsoft Microsoft Office LTSC 2021 16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 – < 16.70.23021201
Microsoft Microsoft Office Online Server 16.0.1 – < 16.0.10395.20001
Microsoft Microsoft Office Web Apps Server 2013 Service Pack 1 15.0.1 – < 15.0.5529.1000
Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.0 – < 15.0.5529.1000
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 – < 16.0.5383.1000
Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.0 – < 15.0.5529.1000
Microsoft Microsoft SharePoint Server 2019 16.0.0 – < 16.0.10395.20001
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 – < 16.0.15601.20478
Microsoft Microsoft Word 2013 Service Pack 1 15.0.1 – < 15.0.5529.1000
Microsoft Microsoft Word 2016 16.0.1 – < 16.0.5383.1000
microsoft office 16.0.0 – < 16.70.23021201
microsoft office long term servicing channel 16.0.1 – < 16.70.23021201
microsoft office online server 16.0.1 – < 16.0.10395.20001
microsoft office web apps server 15.0.1 – < 15.0.5529.1000
microsoft sharepoint foundation 15.0.0 – < 15.0.5529.1000
microsoft sharepoint server 16.0.0 – < 16.0.15601.20478
Microsoft SharePoint Server Subscription Edition Language Pack 16.0.0 – < 16.0.15601.20478
microsoft word 16.0.1 – < 16.0.5383.1000

References and patches

Recent CVEs in the same product — Microsoft Office / 365 Apps

8.8High
CVE-2026-120003

Microsoft Office Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

6.5Medium
CVE-2026-119999

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

6.5Medium
CVE-2026-119998

Microsoft Office Security Feature Bypass Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Product ui does not warn user of unsafe actions in Microsoft Office allows an unauthorized attacker to bypass a security feature over a network.