The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2026-35616, a critical improper access control vulnerability in Fortinet FortiClient Enterprise Management Server (EMS), to its Known Exploited Vulnerabilities (KEV) catalog on April 6, 2026, mandating federal agencies to remediate by April 9, 2026. CVE-2026-35616 is a critical-severity flaw rooted in CWE-284 (Improper Access Control), carrying a CVSS score […] The post CISA Warns of Fortinet 0-Day Vulnerability Actively Exploited in Attacks appeared first on Cyber Security News.