high8.8
CVE-2026-55052
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Impact
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Sharepoint Server | before 16.0.19725.20434 Versions 2016, 2019 |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | from 16.0.0 before 16.0.5561.1001 |
| Microsoft | Microsoft SharePoint Server 2019 | from 16.0.0 before 16.0.10417.20175 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | from 16.0.0 before 16.0.19725.20434 |