PT-2026-58592 · Microsoft · Sharepoint Enterprise Server 2016+2

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-56157

NVD

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-56157

Affected Products

Sharepoint Enterprise Server 2016

Sharepoint Server 2019

Sharepoint Server Subscription Edition

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-56157 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56157 · Vendor Advisory