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Description

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

PUBLISHED Reserved 2025-07-09 | Published 2025-07-20 | Updated 2026-02-13 | Assigner microsoft




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C

Problem types

CWE-287: Improper Authentication

Product status

16.0.0 (custom) before 16.0.5513.1001
affected

16.0.0 (custom) before 16.0.10417.20037
affected

16.0.0 (custom) before 16.0.18526.20508
affected

References

www.bleepingcomputer.com/...-rce-attacks-no-patch-available/

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771 (Microsoft SharePoint Server Spoofing Vulnerability) vendor-advisory patch

cve.org (CVE-2025-53771)

nvd.nist.gov (CVE-2025-53771)

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