What is CVE-2026-58538?
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 affects SharePoint users; it is strongly recommended to immediately apply the security update.
Azərbaycanca: CVE-2026-55040 Microsoft SharePoint-də zəif autentifikasiya zəifliyidir ki, şəbəkə üzərindən icazəsiz hücumçuya təhlükəsizlik funksiyasını keçməyə imkan verir. Bu, SharePoint istifadəçilərinə təsir göstərir; dərhal təhlükəsizlik yeniləməsini tətbiq etmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What is CVE-2026-55040?
CVE-2026-55040 is a weak authentication vulnerability in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network.
How can I protect against CVE-2026-55040?
This affects SharePoint users; it is strongly recommended to immediately apply the security update.
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.