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CVE-2026-56157

MediumCVSS 5.4/10Last modified Jul 15, 2026

Description

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

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Enterprise Server 2016	>= 16.0.0, < 16.0.5561.1001
Microsoft	Microsoft SharePoint Server 2019	>= 16.0.0, < 16.0.10417.20175
Microsoft	Microsoft SharePoint Server Subscription Edition	>= 16.0.0, < 16.0.19725.20434

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56157Patch, Vendor Advisory

Timeline

Published: Jul 14, 2026
Last modified: Jul 15, 2026
NVD status: Analyzed

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