CVE-2026-55040

CRITICAL9.1Veröffentlicht am 14. Juli 2026

Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.

CVSS-Score9.1 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Schwachstellentyp (CWE)CWE-1390

Herstellermicrosoft

Betroffene Produkte

Hersteller	Prodotto	Versioni
microsoft	sharepoint server	< 16.0.19725.20434

SharePoint-Lücke CVE-2026-55040 und CVE-2026-63520: Unauthentifizierte RCE durch JWT-Bypass. Lokale Server betroffen, nicht SharePoint Online.

This product uses the NVD API but is not endorsed or certified by the NVD.