Known exploited vulnerability
CVE-2026-35616
The short answer
CVE-2026-35616 affects Fortinet FortiClientEMS and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-04-06: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
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.
Weakness: CWE-284.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Apr 6, 2026
Federal due date Apr 9, 2026
EPSS, next 30 days
94%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
FortiClientEMS. NVD's record lists the exact affected versions.
References
- fortiguard.fortinet.com/psirt/FG-IR-26-099 PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-35616 US Government Resource
Questions
Is CVE-2026-35616 being exploited?
Yes. CISA added CVE-2026-35616 to its Known Exploited Vulnerabilities catalog on 2026-04-06, with a federal remediation due date of 2026-04-09.
How do I fix CVE-2026-35616?
CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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