CVE-2026-70321

Microsoft · Published August 11, 2026

8.8

CVSS v3.1

HIGH

Patch availableGet patch

Description

Microsoft SharePoint Remote Code Execution Vulnerability. Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Affected Products

Microsoft SharePoint Server Subscription Edition

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C