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CVE-2025-53771

Microsoft SharePoint Server Spoofing Vulnerability

CVSS 6.5 MEDIUMEPSS 99.9%CWE-287
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Affected products
Microsoft · Microsoft SharePoint Enterprise Server 2016Microsoft · Microsoft SharePoint Server 2019Microsoft · Microsoft SharePoint Server Subscription Edition

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