What is CVE-2025-64153?

CVE-2025-64153 is a medium-severity vulnerability in Fortinet Fortiextender, classified under OS Command Injection. CVSS score: 6.7/10. Published 2025-12-09.

How severe is CVE-2025-64153?

Medium severity. CVSS v3 base score is 6.7 out of 10.

RCE in Fortinet Fortiextender

CVE-2025-64153

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.6.0 through 7.6.3, FortiExtender 7.4.0 through 7.4.7, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions m…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C.

Affected products

Fortinet Fortiextender — versions 7.6.0, 7.4.0, 7.2.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-739

Frequently asked questions

What is CVE-2025-64153?: CVE-2025-64153 is a medium-severity vulnerability in Fortinet Fortiextender, classified under OS Command Injection. CVSS score: 6.7/10. Published 2025-12-09.
How severe is CVE-2025-64153?: Medium severity. CVSS v3 base score is 6.7 out of 10.