Fortinet Releases Emergency Fixes for Critical Zero-Day Vulnerability
Fortinet has issued emergency fixes for a critical zero-day vulnerability in its FortiClient Enterprise Management Server (EMS), identified as CVE-2026-35616. This flaw, characterized by improper access control, allows remote code execution without authentication. Fortinet's advisory warns of active exploitation in the wild, prompting the release of hotfixes for affected versions 7.4.5 and 7.4.6, while version 7.2 remains unaffected. The vulnerability was reported by cybersecurity firm Defused, which observed exploitation and disclosed the issue under responsible protocols. The Shadowserver Foundation has identified approximately 2,000 internet-accessible FortiClient EMS instances potentially vulnerable to attacks.