Actively exploited · Published Apr 4, 2026 · Assigned by fortinet
CVE-2026-35616
Critical 9.1 Exploited
In plain English
A critical-severity improper access control in FortiClientEMS from Fortinet. Attackers are actively exploiting it in the wild (listed by CISA on April 6, 2026). The chance it is exploited in the next 30 days is estimated at 94.0% (higher than 99.8% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Apr 9, 2026.
Official description
A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiClientEMS | 7.4.5 – through 7.4.6 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C