CVE-2026-39810

Published Apr 14, 2026 CVSS 3.1 · 5.2 Medium EPSS < 1% KEV · Not listed
Description
A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1 may allow attacker to information disclosure via decrypting database dump.

Analysis

AI-generated

Technical impact

The vulnerability arises from a hard‑coded cryptographic key in FortiClientEMS versions 7.4.0 through 7.4.5. This flaw allows an attacker to decrypt database dumps, potentially exposing sensitive information stored within the client database. The primary impact is the compromise of data confidentiality, as the decryption of the database would reveal user or system data that was intended to remain protected.

Affected Systems

Affected systems include Fortinet FortiClientEMS on all impacted releases: version 7.4.0, 7.4.1, 7.4.3, 7.4.4, and 7.4.5. Users running any of these versions should verify their deployment and assess whether the local database is at risk of being exposed.

Risk and Exploitability

The CVSS score of 5.2 indicates medium severity. The EPSS score is less than 1 %, signifying an extremely low exploitation probability, and the vulnerability is not included in the CISA KEV catalog. Based on the description, an attacker would need to acquire a database dump and use the hard‑coded key to decrypt it; thus local or privileged access is likely required. The confidentiality impact warrants prompt remediation through the vendor update.

Remediation

Vendor Solution

Upgrade to FortiClientEMS version 7.4.6 or above


OpenCVE Recommended Actions

  • Apply the FortiClientEMS security update to version 7.4.6 or later.
  • Revoke or restrict local user permissions that allow dumping the client database, and enable audit logging for database read operations.
  • Verify that any existing database dumps have been secured or deleted, and consider encrypting sensitive data or disabling client‑side persistence if feasible.

Generated by OpenCVE AI on November 6, 2026 at 18:53 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Hard‑coded Cryptographic Key Allows Information Disclosure in FortiClientEMS
Type Values Removed Values Added
Description A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5 may allow attacker to information disclosure via decrypting database dump. A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1 may allow attacker to information disclosure via decrypting database dump.
Type Values Removed Values Added
CPEs cpe:2.3:a:fortinet:forticlientems:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Hard‑coded Cryptographic Key Allows Information Disclosure in FortiClientEMS
Type Values Removed Values Added
Description A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5 may allow attacker to information disclosure via <insert attack vector here> A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5 may allow attacker to information disclosure via decrypting database dump.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5 may allow attacker to information disclosure via <insert attack vector here>
First Time appeared Fortinet
Fortinet forticlientems
Weaknesses CWE-321
CPEs cpe:2.3:a:fortinet:forticlientems:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientems:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientems:7.4.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientems:7.4.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet forticlientems
References
Metrics cvssV3_1

{'score': 5.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}

Weaknesses
  • CWE-321

    Use of Hard-coded Cryptographic Key

Sources

Status
PUBLISHED
Assigner
fortinet
Published
Updated
Nov 6, 2026, 3:42 PM
Reserved
Apr 7, 2026, 3:24 PM
Status
Modified
Published
Apr 14, 2026, 4:16 PM
Modified
Nov 6, 2026, 4:18 PM