CVE-2026-35616 (GCVE-0-2026-35616)

Vulnerability from cvelistv5 – Published: 2026-04-04 00:38 – Updated: 2026-04-21 08:35
VLAI CISA CIRCL KEVIntel
Summary
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.
Severity
9.1 (Critical)
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
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-284 - Escalation of privilege
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiClientEMS Affected: 7.4.5 , ≤ 7.4.6 (semver)
    cpe:2.3:a:fortinet:forticlientems:7.4.6:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*
 Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1953e3a1-f872-4c28-ab9a-d0be510a988d

Vulnerability ID: CVE-2026-35616

Status: Confirmed

Status Updated: 2026-04-06 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-04-06
Asserted: 2026-04-06
Scope
Notes: KEV entry: Fortinet FortiClient EMS Improper Access Control Vulnerability | Affected: Fortinet / FortiClient EMS | Description: Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests. | 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. | Due date: 2026-04-09 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): Please adhere to Fortinet's guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible Fortinet products affected by this vulnerability. Apply any final mitigations provided by the vendor as soon as they become available. For more information please see: https://fortiguard.fortinet.com/psirt/FG-IR-26-099 ; https://nvd.nist.gov/vuln/detail/CVE-2026-35616
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-284
Feed CISA Known Exploited Vulnerabilities Catalog
Product FortiClient EMS
Due Date 2026-04-09
Date Added 2026-04-06
Vendorproject Fortinet
Vulnerabilityname Fortinet FortiClient EMS Improper Access Control Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-04-06 16:00 UTC | Updated: 2026-04-06 16:00 UTC
CIRCL
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9c351bf2-5999-41a6-ad31-e5c3770cd041

Vulnerability ID: CVE-2026-35616

Status: Confirmed

Status Updated: 2026-04-06 15:38 UTC

Exploited: Yes

Timestamps
First Seen: 2026-04-06
Asserted: 2026-04-06
Last Seen: 2026-04-06
Created: 2026-04-06 15:39 UTC | Updated: 2026-04-06 15:39 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5156def4-1686-4dd6-8abd-4e97aa86e495

Vulnerability ID: CVE-2026-35616

Status: Confirmed

Status Updated: 2026-05-28 16:35 UTC

Exploited: Yes

Timestamps
First Seen: 2026-05-28
Asserted: 2026-05-28
Scope
Notes: KEVIntel entry: A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute... | Affected: Fortinet / FortiClientEMS | CVSS: 9.8 (CRITICAL) | EPSS: 0.88505 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute...
Vendor Fortinet
Product FortiClientEMS
Added Date 2026-05-28T16:35:05.000Z
Cvss Score 9.8
Epss Score 0.88505
Cvss Severity CRITICAL
Epss Percentile 0.99752
Used In Malware unknown
Ahead Of Cisa Kev 
{
  "count": 5,
  "unit": "day"
}
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:45 UTC | Updated: 2026-06-19 12:45 UTC
Show details on NVD website
To clipboard 

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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.