5.5

CVE-2026-39810: fortinet forticlientems Use of Hard-coded Cryptographic Key

CVSS: 5.5v3.1MediumAnalyzed
Published 14-04-2026Last modified 14-04-2026
Open JSON

Vulnerability summary

CVE-2026-39810 is a medium (CVSS 5.5) Use of Hard-coded Cryptographic Key vulnerability in fortinet forticlientems. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.15%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-04-2026
    PublishedVulnerability first disclosed.
  2. 14-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.05 pp

From 0.10% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet1 product
  • forticlientems≥ 7.4.3, ≤ 7.4.5 | ≥ 7.4.0, ≤ 7.4.1 | ≥ 7.4.0, < 7.4.6

1 vendor · 1 product

References

1 links