What is CVE-2025-54838?

CVE-2025-54838 is a medium-severity vulnerability in Fortinet Fortiportal, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2025-12-09.

How severe is CVE-2025-54838?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in Fortinet Fortiportal

CVE-2025-54838

An Incorrect Authorization vulnerability [CWE-863] in FortiPortal 7.4.0 through 7.4.5 may allow an authenticated attacker to reboot a shared FortiGate device via crafted HTTP requests.

Vulnerability class: Broken Access Control

EPSS: 0.003 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.

Affected products

Fortinet Fortiportal — versions 7.4.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-54838?: CVE-2025-54838 is a medium-severity vulnerability in Fortinet Fortiportal, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2025-12-09.
How severe is CVE-2025-54838?: Medium severity. CVSS v3 base score is 6.8 out of 10.