Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < 16.0.5556.1005 | 16.0.5556.1005 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20153 | 16.0.10417.20153 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.19725.20384 | 16.0.19725.20384 |
Advisories 3
- WID-SEC-2026-1847 Microsoft Office: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 9, 2026
- NCSC-2026-0182 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · Jun 9, 2026
- MSRC-CVE-2026-45484 Microsoft SharePoint Elevation of Privilege Vulnerability Microsoft Security Response Center · Jun 9, 2026
References
- Microsoft SharePoint Elevation of Privilege Vulnerability vendor-advisory patch