Description
Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.20326.20190 | 16.0.20326.20190 |
Advisories 3
- WID-SEC-2026-3916 Microsoft Office Produkte: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Oct 15, 2026
- NCSC-2026-0422 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · Oct 13, 2026
- MSRC-CVE-2026-102866 Microsoft Office SharePoint Elevation of Privilege Vulnerability Microsoft Security Response Center · Oct 13, 2026
References
- Microsoft Office SharePoint Elevation of Privilege Vulnerability vendor-advisory patch