Is CVE-2026-35616 in the CISA KEV catalog?

Yes. CVE-2026-35616 is on the CISA Known Exploited Vulnerabilities list, added 2026-04-06.

What is the CVSS severity of CVE-2026-35616?

CVE-2026-35616 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2026-35616?

CVE-2026-35616 has an EPSS score of 88.50% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-35616?

No published fix for CVE-2026-35616 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2026-04-09. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2026-35616

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

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.

CWE-284Improper Access Control

How to fix

Actively exploited, no published fix found yet

Federal remediation due: 2026-04-09

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

88.50%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-04-09

References

Patch1

fortiguard.fortinet.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-06.