What is CVE-2026-49808?
This is a weak authentication vulnerability found in Microsoft SharePoint (CVE-2026-55040). It allows an unauthorized attacker to bypass a security feature over the network. System administrators should immediately apply the security update provided by Microsoft.
Azərbaycanca: Bu, Microsoft SharePoint-də aşkarlanmış zəif autentifikasiya zəifliyidir (CVE-2026-55040). İcazəsiz təcavüzkara şəbəkə üzərindən təhlükəsizlik funksiyasını yan keçməyə imkan verir. Sistem administratorları Microsoft-un təqdim etdiyi təhlükəsizlik yeniləməsini dərhal tətbiq etməlidirlər.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What action can an attacker exploiting the weak authentication vulnerability in Microsoft SharePoint perform over the network?
An unauthorized attacker can bypass a security feature over the network.
What should system administrators do to mitigate this vulnerability?
System administrators should 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.