What is CVE-2026-50686?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network. SharePoint administrators should urgently apply the security update released by the vendor.
Azərbaycanca: CVE-2026-55040 Microsoft SharePoint-da zəif autentifikasiya zəifliyidir və şəbəkə üzərindən icazəsiz hücumçuya təhlükəsizlik funksiyasını bypass etməyə imkan verir. SharePoint administratorları təcili olaraq vendor tərəfindən buraxılmış təhlükəsizlik yeniləməsini tətbiq etməlidir.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What type of vulnerability is CVE-2026-55040 in Microsoft SharePoint?
CVE-2026-55040 is a weak authentication vulnerability.
What can an attacker achieve by exploiting CVE-2026-55040?
An unauthorized attacker can bypass a security feature over a network.
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.