CVE-2025-53771

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Enterprise Server 2016	>= 16.0.0, < 16.0.5513.1001
Microsoft	Microsoft SharePoint Server 2019	>= 16.0.0, < 16.0.10417.20037
Microsoft	Microsoft SharePoint Server Subscription Edition	>= 16.0.0, < 16.0.18526.20508

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771Vendor Advisory
https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/Press/Media Coverage

Timeline

Published: Jul 20, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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