Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < 16.0.5504.1001 | 16.0.5504.1001 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20018 | 16.0.10417.20018 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.18526.20396 | 16.0.18526.20396 |
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.
Exploit-DB 1
- Microsoft SharePoint 2019 - NTLM Authentication EDB-52349 · remote · Jul 2, 2025
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- WID-SEC-2025-1276 Microsoft Office Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 17, 2025
- NCSC-2025-0189 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · Jun 10, 2025
- MSRC-CVE-2025-47166 Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft Security Response Center · Jun 10, 2025
References
- Microsoft SharePoint Server Remote Code Execution Vulnerability vendor-advisory patch