How severe is CVE-2026-35616?

CVE-2026-35616 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35616 being actively exploited?

Yes. CVE-2026-35616 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-06, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-35616?

CVE-2026-35616 primarily affects Fortinet Forticlientems. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-35616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-35616 have an EU (EUVD) identifier?

Yes. CVE-2026-35616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18963. It is also flagged as exploited in the EUVD (since 2026-04-06).

When was CVE-2026-35616 published?

CVE-2026-35616 was published on 2026-04-04 and last updated on 2026-06-17.

CVE-2026-35616

CVE-2026-35616 is a critical-severity vulnerability in Fortinet Forticlientems with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-04-06). The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 89% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-04-06)
EU (EUVD) id: EUVD-2026-18963
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-04-06)
Weakness: CWE-284
Affected product: Fortinet Forticlientems
Published: 2026-04-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-35616?: 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.
How severe is CVE-2026-35616?: CVE-2026-35616 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35616 being actively exploited?: Yes. CVE-2026-35616 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-06, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-35616?: CVE-2026-35616 primarily affects Fortinet Forticlientems. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-35616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2026-35616 have an EU (EUVD) identifier?: Yes. CVE-2026-35616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18963. It is also flagged as exploited in the EUVD (since 2026-04-06).
When was CVE-2026-35616 published?: CVE-2026-35616 was published on 2026-04-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientems:7.4.6:*:*:*:*:*:*:*

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