CVE-2026-35439: Microsoft SharePoint Server Remote Code Execution Vulnerability
This Microsoft advisory covers CVE-2026-35439 in Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019 and Microsoft SharePoint Server Subscription Edition.
- CVE-2026-35439
Key facts
- Vendor rating
- High, CVSS 8.8
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5552.1002; Microsoft SharePoint Server 2019 16.0.0 before 16.0.10417.20128; Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.19725.20280
- Fixed in
- 16.0.5552.1002, 16.0.10417.20128, 16.0.19725.20280
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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 SharePoint Enterprise Server 2016 16.0.0 before 16.0.5552.1002
- Microsoft SharePoint Server 2019 16.0.0 before 16.0.10417.20128
- Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.19725.20280
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-35439
Upgrade to a fixed release named by Microsoft:
- 16.0.5552.1002
- 16.0.10417.20128
- 16.0.19725.20280
End-of-life dates for Microsoft SharePoint Server
More Microsoft Server advisories
CVE-2026-97783Oct 13, 2026Microsoft Office SharePoint Spoofing VulnerabilityCVE-2026-69943Oct 13, 2026Microsoft Office SharePoint Remote Code Execution VulnerabilityCVE-2026-120000Nov 10, 2026Microsoft Office SharePoint Remote Code Execution VulnerabilityCVE-2026-124210Nov 10, 2026Microsoft Office SharePoint Information Disclosure VulnerabilityCVE-2026-123391Nov 10, 2026Microsoft Office SharePoint Elevation of Privilege VulnerabilityCVE-2026-123390Nov 10, 2026Microsoft Office SharePoint Remote Code Execution Vulnerability
Microsoft Server advisories, May 2026All Microsoft Server advisories
Get an email when Microsoft SharePoint Server publishes the next one.
See Microsoft SharePoint Server's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
iPhone and Android apps · New on the App Store
Monitor future Microsoft Server CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
