CVE-2026-20943: Microsoft Office Click-To-Run Remote Code Execution Vulnerability
This Microsoft advisory covers CVE-2026-20943 in Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019 and Microsoft SharePoint Server Subscription Edition.
- CVE-2026-20943
Key facts
- Vendor rating
- High, CVSS 7
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Microsoft Office 2016 16.0.0 before 16.0.5535.1000; Microsoft Office Deployment Tool 1.0 before 16.0.19426.20170; Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5535.1001 and 2 more below
- Fixed in
- 16.0.5535.1000, 16.0.19426.20170, 16.0.5535.1001 and 2 more below
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.
Text from the source record.
- Microsoft Office 2016 16.0.0 before 16.0.5535.1000
- Microsoft Office Deployment Tool 1.0 before 16.0.19426.20170
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5535.1001
- Microsoft SharePoint Server 2019 16.0.0 before 16.0.10417.20083
- Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.19127.20442
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-20943
Upgrade to a fixed release named by Microsoft:
- 16.0.5535.1000
- 16.0.19426.20170
- 16.0.5535.1001
- 16.0.10417.20083
- 16.0.19127.20442
End-of-life dates for Microsoft SharePoint Server
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Microsoft Server advisories, January 2026All Microsoft Server advisories
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