CVE-2026-55040
Microsoft · Published July 14, 2026
9.1
CVSS v3.1
CRITICALPatch availableGet patch
Description
Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.
Affected Products
- Sharepoint Server < 16.0.19725.20434
- Sharepoint Server
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N