CVE-2026-35616 — Fortinet FortiClient EMS Improper Access Control Vulnerability
CVE-2026-35616: Fortinet FortiClient EMS Improper Access Control Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Fortinet |
| Product | FortiClient EMS |
| Date added | 2026-04-06 |
| Due date | 2026-04-09 |
| Ransomware campaign use | Unknown |
Description
Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
Please adhere to Fortinet's guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible Fortinet products affected by this vulnerability. Apply any final mitigations provided by the vendor as soon as they become available. For more information please see: https://fortiguard.fortinet.com/psirt/FG-IR-26-099 ; https://nvd.nist.gov/vuln/detail/CVE-2026-35616
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35616
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog