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 – < 16.0.5552.1002 | 16.0.5552.1002 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20128 | 16.0.10417.20128 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.19725.20280 | 16.0.19725.20280 |
Advisories 3
- MSRC-CVE-2026-33112 Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft Security Response Center · May 27, 2026
- WID-SEC-2026-1490 Microsoft Office: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 12, 2026
- NCSC-2026-0144 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · May 12, 2026
References
- Microsoft SharePoint Server Remote Code Execution Vulnerability vendor-advisory patch