What is CVE-2026-48564?
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 could grant an attacker unauthorized access to the system. Organizations are advised to immediately apply the security update provided by Microsoft.
Azərbaycanca: CVE-2026-55040 Microsoft SharePoint-də şəbəkə üzərindən autentifikasiya mexanizmini keçməyə imkan verən zəif autentifikasiya zəifliyidir. Bu, icazəsiz hücumçuya təhlükəsizlik funksiyasını bypass edərək sistemə daxil olmaq imkanı yaradır. Təşkilatlar dərhal Microsoft tərəfindən təqdim olunan təhlükəsizlik yeniləməsini tətbiq etməlidir.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What security issue does CVE-2026-55040 cause in Microsoft SharePoint?
This weak authentication vulnerability allows an unauthorized attacker to bypass a security feature over a network and gain access to the system.
What action should organizations take regarding CVE-2026-55040?
Organizations are advised to 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.