CVE-2026-35616

Exp

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.

Published: 2026-04-04 Last update: 2026-04-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-35616 is rated Critical Active Threat (93.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 34.75%, 97th percentile). CISA KEV confirms active exploitation (added 2026-04-06) affecting Fortinet / FortiClient EMS. a weakness (CWE-284) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2026-35616

Name: Fortinet FortiClient EMS Improper Access Control Vulnerability · CISA KEV detail

Exploit added: 2026-04-06

Action due: 2026-04-09

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.

Exploit prediction scoring system (EPSS) score for CVE-2026-35616

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-02 41.17% 34.75% -6.42%
2 2026-05-29 43.21% 41.17% -2.04%
3 2026-05-22 — 43.21% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-35616

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2026-35616

Affected software / configurations for CVE-2026-35616

Vendor Product Version Raw CPE
fortinet forticlientems 7.4.5 cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*
fortinet forticlientems 7.4.6 cpe:2.3:a:fortinet:forticlientems:7.4.6:*:*:*:*:*:*:*

References for CVE-2026-35616

cvelogic Threat Intelligence