What is CVE-2026-55020?
A weak authentication vulnerability has been identified in Microsoft SharePoint (CVE-2026-55020). This flaw allows an unauthorized attacker to bypass a security feature over a network. Administrators should immediately apply the security update provided by Microsoft.
Azərbaycanca: Microsoft SharePoint-də autentifikasiya zəifliyi aşkarlanıb (CVE-2026-55020). Bu boşluq şəbəkə üzərindən icazəsiz şəxslərə təhlükəsizlik funksiyasını keçməyə imkan verir. Administratorlar dərhal Microsoft tərəfindən təqdim olunan təhlükəsizlik yeniləməsini tətbiq etməlidir.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What functionality in Microsoft SharePoint does CVE-2026-55020 affect?
CVE-2026-55020 is an authentication vulnerability in Microsoft SharePoint that allows a security feature to be bypassed over a network.
What should be done to protect against CVE-2026-55020?
Administrators should immediately apply the security update provided 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.