Fortinet Patches CVE-2026-24858 After Active FortiOS SSO Exploitation Detected

Fortinet Patches CVE-2026-24858 After Active FortiOS SSO Exploitation Detected

Why This Matters Now: The recent detection of active exploitation of CVE-2026-24858 in FortiOS highlights the urgency of addressing this vulnerability. Attackers are actively targeting SSO implementations, putting organizations’ security at risk. Ensuring your FortiOS system is up-to-date and properly configured is crucial to prevent unauthorized access. 🚨 Breaking: Active exploitation of CVE-2026-24858 detected. Update your FortiOS systems immediately to prevent unauthorized access. Active ExploitationThreat Status 24hrsTime to Patch Understanding CVE-2026-24858 CVE-2026-24858 is a critical vulnerability in FortiOS, a popular firewall and security management software. This vulnerability specifically targets the Single Sign-On (SSO) functionalities within FortiOS, allowing attackers to gain unauthorized access to network resources. The vulnerability arises from improper validation of SSO requests, enabling malicious actors to craft specially crafted requests that bypass authentication mechanisms. ...

Jan 28, 2026 · 4 min · 704 words · IAMDevBox