What is CVE-2026-56186?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network. Organizations should immediately apply the security update released by Microsoft.
Azərbaycanca: Bu CVE-2026-55040 Microsoft SharePoint-də zəif autentifikasiya zəifliyidir və şəbəkə üzərindən icazəsiz hücumçuya təhlükəsizlik funksiyasını keçməyə imkan verir. Təşkilatlar Microsoft tərəfindən buraxılmış təhlükəsizlik yeniləməsini dərhal tətbiq etməlidir.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What can an attacker exploiting CVE-2026-55040 achieve?
This vulnerability allows an unauthorized attacker to bypass a security feature in Microsoft SharePoint over a network.
What should organizations do to mitigate the risk related to CVE-2026-55040?
Organizations should immediately apply the security update released by Microsoft.
See also6
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.