π¨ Microsoft SharePoint Auth Bypass (CVE-2026-55040) chains with CVE-2026-63520 for RCE, exploit code Aug11, VulnCheck KEV Aug12, CISA KEV Aug18, ~21k exposed installs # SharePoint # Microsoft # CVE #
π¨ Microsoft SharePoint Auth Bypass (CVE-2026-55040) chains with CVE-2026-63520 for RCE, exploit code Aug11, VulnCheck KEV Aug12, CISA KEV Aug18, ~21k exposed installs # SharePoint # Microsoft # CVE # CISAKEV β‘οΈ https:// avleonov.com/2026/09/13/i154-a bout-authentication-bypass-microsoft-sharepoint-cve202655040-vulnerability/