CVE-2023-21716
criticalpriority · attend · 79EPSS 0.848 · 100 %ileexploit · PoCDEEURUUSEPSS · scored 2026-10-27
Microsoft Word Remote Code Execution Vulnerability
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedMicrosoft 365 Apps for Enterprise for 32-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft 365 Apps for Enterprise for 64-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 32-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 64-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for Macmsrc_csaf
16.70.23021201:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049 - FixedMicrosoft Office LTSC 2021 for 32-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC 2021 for 64-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office LTSC for Mac 2021msrc_csaf
16.70.23021201:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049 - FixedMicrosoft Office Online Servermsrc_csaf
16.0.10395.20001:Security Update:https://support.microsoft.com/help/5002309
https://support.microsoft.com/help/5002309 - FixedMicrosoft Office Web Apps Server 2013 Service Pack 1msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/kb/5002313
https://support.microsoft.com/kb/5002313 - FixedMicrosoft SharePoint Enterprise Server 2013 Service Pack 1msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/help/5002312
https://support.microsoft.com/help/5002312 - FixedMicrosoft SharePoint Enterprise Server 2016msrc_csaf
16.0.5383.1000:Security Update:https://support.microsoft.com/help/5002325
https://support.microsoft.com/help/5002325 - FixedMicrosoft SharePoint Foundation 2013 Service Pack 1msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/help/5002312
https://support.microsoft.com/help/5002312 - FixedMicrosoft SharePoint Server 2019msrc_csaf
16.0.10395.20001:Security Update:https://support.microsoft.com/help/5002330
https://support.microsoft.com/help/5002330 - FixedMicrosoft SharePoint Server Subscription Editionmsrc_csaf
16.0.15601.20478:Security Update:https://support.microsoft.com/help/5002352
https://support.microsoft.com/help/5002352 - FixedMicrosoft Word 2013 RT Service Pack 1msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/help/5002316
https://support.microsoft.com/help/5002316 - FixedMicrosoft Word 2013 Service Pack 1 (32-bit editions)msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/kb/5002316
https://support.microsoft.com/kb/5002316 - FixedMicrosoft Word 2013 Service Pack 1 (64-bit editions)msrc_csaf
15.0.5529.1000:Security Update:https://support.microsoft.com/kb/5002316
https://support.microsoft.com/kb/5002316 - FixedMicrosoft Word 2016 (32-bit edition)msrc_csaf
16.0.5383.1000:Security Update:https://support.microsoft.com/kb/5002323
https://support.microsoft.com/kb/5002323 - FixedMicrosoft Word 2016 (64-bit edition)msrc_csaf
16.0.5383.1000:Security Update:https://support.microsoft.com/kb/5002323
https://support.microsoft.com/kb/5002323 - FixedSharePoint Server Subscription Edition Language Packmsrc_csaf
16.0.15601.20478:Security Update:https://support.microsoft.com/help/5002352
https://support.microsoft.com/help/5002352
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (12)
Public proof-of-concept and weaponised exploit code.
- FeatherStark/CVE-2023-21716FeatherStark/CVE-2023-21716PoC · poc_in_github
- P4x1s/CVE-2023-21716-POCMicrosoft Word 远程代码执行漏洞PoC · poc_in_github
affected products (100)
Products and version ranges known to be affected.
- Microsoft Office Web Apps Server 2013 SP1all versionscert_bundDEcpe:/a:microsoft:office_web_apps_server_2013:sp1
- Microsoft SharePoint Enterprise Server 2013 SP1all versionscert_bundDEcpe:/a:microsoft:sharepoint:enterprise_server_2013_sp1
- Microsoft SharePoint Enterprise Server 2016all versionscert_bundDEcpe:/a:microsoft:sharepoint:enterprise_server_2016
- Microsoft SharePoint Foundation 2013 SP1all versionscert_bundDEcpe:/a:microsoft:sharepoint_foundation_2013:sp1
- Microsoft SharePoint Server Subscription Editionall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition
- Microsoft SharePoint Server Subscription Edition Language Packall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition_language_pack
- Microsoft Microsoft 365 Apps for Enterprise16.0.1 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-0391Microsoft Office Produkte: Mehrere SchwachstellenDeutsch2023-02-14csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office und SharePoint Produkten ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, Sicherheitsmechanismen zu umgehen und Informationen offenzulegen.
- msrc_CVE-2023-21716Microsoft Word Remote Code Execution Vulnerability2023-02-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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