#VU109045 Missing authentication for critical function in Fortinet, Inc products - CVE-2025-22252

Vulnerability identifier: #VU109045

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-22252

CWE-ID: CWE-306

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiOS
Operating systems & Components / Operating system
FortiProxy
Hardware solutions / Routers & switches, VoIP, GSM, etc
FortiSwitch Manager
Client/Desktop applications / Software for system administration

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The vulnerability exists due to missing authentication for critical function. An attacker with knowledge of an existing admin account can bypass TACACS+ authentication and access the device as a valid admin.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FortiOS: 7.4.4, 7.4.5, 7.4.6, 7.6.0

FortiProxy: 7.6.0, 7.6.1

FortiSwitch Manager: 7.2.5

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External links
https://www.fortiguard.com/psirt/FG-IR-24-472

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.