Risk Letters

Exploited vulnerability

CVE-2026-35616

TLP:CLEAR

Fortinet FortiClient EMS Improper Access Control Vulnerability

Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

Facts

  • Vendor: Fortinet
  • Product: FortiClient EMS
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 94 %
  • On CISA's Known Exploited Vulnerabilities list since: 6 April 2026
  • First known exploitation: 6 April 2026
  • CISA's deadline for US federal agencies: 9 April 2026
  • Weakness: CWE-284
  • First seen by Risk Letters: 4 April 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD