cve 2026 24858

About this tag
CVE-2026-24858 is a critical authentication-bypass vulnerability in Fortinet FortiCloud single sign-on (SSO). It allows an attacker who controls a FortiCloud account and a registered device to gain administrative access to other Fortinet devices where FortiCloud SSO is enabled. The flaw is actively exploited in the wild, leading Fortinet to temporarily disable FortiCloud SSO as an emergency control. CISA has added this CVE to the Known Exploited Vulnerabilities (KEV) Catalog, requiring immediate remediation for federal systems under BOD 22-01. Enterprise administrators running Fortinet management or gateway products should treat patching as an emergency priority.

  1. CVE-2026-24858 Fortinet SSO Bypass: Urgent Patch and Mitigation

    Fortinet has confirmed a new, actively exploited authentication‑bypass flaw—tracked as CVE‑2026‑24858—that allows an attacker who controls a FortiCloud account and a registered device to gain administrative access to other Fortinet devices where FortiCloud single sign‑on (SSO) is enabled. This...
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    • authentication bypass cve 2026 24858 forticloud sso fortinet
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    • Forum: Security Alerts

  2. Urgent Patch for CVE-2026-24858 Fortinet FortiCloud SSO Bypass

    CISA has added a critical Fortinet authentication‑bypass bug, tracked as CVE‑2026‑24858, to its Known Exploited Vulnerabilities (KEV) Catalog after evidence that attackers abused FortiCloud Single Sign‑On (SSO) to gain administrative access across accounts — a high‑impact event that federal...
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    • bod 22-01 cve 2026 24858 fortinet forticloud sso kev catalog
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    • Forum: Security Alerts