CVE-2026-55040

CRITICAL9.1

Published 2026-07-14 · Updated 2026-07-14 · Source secure@microsoft.com

Description

Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE-1390

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55040

View on NVD

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