What is CVE-2026-50405?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network. This issue enables network-based exploitation without proper credentials. Administrators should immediately apply the security update provided by Microsoft.
Azərbaycanca: CVE-2026-55040, Microsoft SharePoint-da şəbəkə üzərindən autentifikasiya mexanizmini keçməyə imkan verən zəif autentifikasiya zəifliyidir. Bu, icazəsiz şəxsə təhlükəsizlik funksiyasını bypass etməyə şərait yaradır. SharePoint administratorlarına təcili olaraq Microsoft tərəfindən buraxılmış təhlükəsizlik yeniləməsini tətbiq etmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What can an attacker achieve by successfully exploiting CVE-2026-55040?
An attacker can bypass the authentication mechanism and circumvent a security feature in Microsoft SharePoint.
What does Microsoft recommend administrators do to mitigate this vulnerability?
Administrators are advised to immediately apply the security update released by Microsoft to protect against this vulnerability.
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.