What is CVE-2026-44278?

CVE-2026-44278 is a low-severity vulnerability in Fortinet Forticlient, classified under Use of Hard-coded Cryptographic Key. CVSS score: 2.3/10. Published 2026-05-12.

How severe is CVE-2026-44278?

Low severity. CVSS v3 base score is 2.3 out of 10.

Vulnerability in Fortinet Forticlient

CVE-2026-44278

A use of hard-coded cryptographic key vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.2, FortiClientWindows 7.2 all versions may allow attacker to information disclosure via <insert attack vector here>

Published 2026-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Fortinet Forticlient
Fortinet Forticlientwindows — versions 7.4.0, 7.2.0

Weakness classification (CWE)

CWE-321 — Use of Hard-coded Cryptographic Key

References

fortiguard.fortinet.com/psirt/FG-IR-26-129 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-44278?: CVE-2026-44278 is a low-severity vulnerability in Fortinet Forticlient, classified under Use of Hard-coded Cryptographic Key. CVSS score: 2.3/10. Published 2026-05-12.
How severe is CVE-2026-44278?: Low severity. CVSS v3 base score is 2.3 out of 10.