CVE-2025-54838Network attack vector

Authenticated device reboot via crafted HTTP requests

Published Dec 9, 2025 · Updated Jan 14, 2026

Incorrect authorization in Fortinet FortiPortal 7.4.0 through 7.4.5 allows remote authenticated users to reboot a shared FortiGate. In a multi-VDOM environment, FortiPortal accepts crafted HTTP requests from an authenticated session and permits the reboot operation; Fortinet has not identified the endpoint or missing authorization check. Exploitation requires portal credentials and can interrupt service on a firewall shared by multiple tenants.

CVSS severity6.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Fortinet FortiPortal 7.4.0 through 7.4.5 allows remote authenticated users to reboot a shared FortiGate. In a multi-VDOM environment, FortiPortal accepts crafted HTTP requests from an authenticated session and permits the reboot operation; Fortinet has not identified the endpoint or missing authorization check. Exploitation requires portal credentials and can interrupt service on a firewall shared by multiple tenants.

The record

CVE
CVE-2025-54838
Published
Dec 9, 2025
Updated
Jan 14, 2026
Vendor
Fortinet
Product
FortiPortal
Classifications
CWE-863, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.4.0 <=7.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fortinet · FortiPortalversion=7.4.0 <=7.4.5

Published CVSS scores

6.5FortinetCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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