Skip to content
OpenAdvisories
High · 8.1 Exploitation more likely Public exploit CVE-2026-63520 EUVD-2026-56298GHSA-cj4w-v2c3-7qjr

Microsoft SharePoint Server Remote Code Execution Vulnerability

Published Aug 11, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Vendor: Microsoft Product: Microsoft SharePoint Enterprise Server 2016 Product: Microsoft SharePoint Server 2019 Product: Microsoft SharePoint Server Subscription Edition

Description

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

Affected products

VendorProductAffectedFixed
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 – < 16.0.5565.1001 16.0.5565.1001
Microsoft Microsoft SharePoint Server 2019 16.0.0 – < 16.0.10417.20198 16.0.10417.20198
Microsoft Microsoft SharePoint Server Subscription Edition 16.0.0 – < 16.0.19725.20522 16.0.19725.20522

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 3

References