What is CVE-2026-25689?

CVE-2026-25689 is a medium-severity vulnerability in Fortinet Fortideceptor, classified under Argument Injection. CVSS score: 6.0/10. Published 2026-03-10.

How severe is CVE-2026-25689?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Vulnerability in Fortinet Fortideceptor

CVE-2026-25689

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.2.0, FortiDeceptor 6.0 all versions, FortiDeceptor 5.3 all versions, FortiDeceptor 5.2 all versions, FortiDecep…

EPSS: 0.001 (18.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C.

Affected products

Fortinet Fortideceptor — versions 6.2.0, 6.0.0, 5.3.0

Weakness classification (CWE)

CWE-88 — Argument Injection

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-094

Frequently asked questions

What is CVE-2026-25689?: CVE-2026-25689 is a medium-severity vulnerability in Fortinet Fortideceptor, classified under Argument Injection. CVSS score: 6.0/10. Published 2026-03-10.
How severe is CVE-2026-25689?: Medium severity. CVSS v3 base score is 6.0 out of 10.