What is CVE-2026-56190?
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 potentially enable network-based access without proper credentials. Immediate patching with Microsoft's official update is strongly recommended for affected SharePoint environments.
Azərbaycanca: CVE-2026-55040 Microsoft SharePoint-da şəbəkə üzərindən autentifikasiyanı keçməyə imkan verən zəif autentifikasiya zəifliyidir. Bu, icazəsiz şəxsə təhlükəsizlik funksiyasını bypass edərək sistemə daxil olmaq imkanı yarada bilər. SharePoint mühitləri üçün dərhal Microsoft-un rəsmi 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 that allows an unauthorized attacker to bypass a security feature over a network. This could potentially enable network-based access without proper credentials.
How can I protect against CVE-2026-55040?
Immediate patching with Microsoft's official update is strongly recommended for affected SharePoint environments.
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.