What is CVE-2026-50666?
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 flaw could lead to unauthorized access to your SharePoint environment, and it is strongly recommended to apply the security update provided by the vendor immediately.
Azərbaycanca: CVE-2026-55040, Microsoft SharePoint-də zəif autentifikasiya zəifliyidir və şəbəkə üzərindən icazəsiz təcavüzkara təhlükəsizlik funksiyasını keçməyə imkan verir. Bu zəiflik SharePoint mühitinizə potensial icazəsiz girişə səbəb ola bilər, dərhal istehsalçı tərəfindən təqdim edilən təhlükəsizlik yeniləməsini tətbiq etmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What security risk does CVE-2026-55040 pose in Microsoft SharePoint?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint. This flaw allows an unauthorized attacker to bypass a security feature over a network, potentially leading to unauthorized access to your SharePoint environment.
What is recommended to protect against the CVE-2026-55040 vulnerability?
To protect against the CVE-2026-55040 vulnerability, it is strongly recommended to apply the security update provided by the vendor immediately.
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.