What is CVE-2026-58633?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network. It is recommended to strengthen security measures on affected systems.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
Which function of Microsoft SharePoint does CVE-2026-55040 affect?
This vulnerability affects the authentication mechanism, allowing an unauthorized attacker to bypass a security feature over a network.
What should be done to protect against CVE-2026-55040?
It is recommended to strengthen security measures on affected systems.
See also6
grounded ✓NVD ↗
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.