Fortinet fixes a critical vulnerability in various products

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[TLP:CLEAR] Fortinet fixes a critical vulnerability in various products

Fortinet fixes a critical vulnerability in various products [1]. Products and their fixed versions: FortiSwitchManager - 7.2.6 FortiProxy - 7.6.2 FortiOS - 7.4.7, 7.6.1

Fortinet FortiOS, FortiProxy, FortiSwitchManager - unauthorized admin access (CVE-2025-22252)

CVSS 9.8 (Critical)

An unauthenticated remote attacker who knows the username of an existing account can bypass authentication and obtain administrator access on instances running FortiOS, FortiProxy or FortiSwitchManager that use a remote TACACS+ server configured for ASCII authentication. If an immediate update to a fixed version is not possible, it is recommended to temporarily mitigate the risk by using an alternative authentication method. Detailed information on the temporary workaround is available at [1].

The vulnerability is present in products:

*:FortiSwitchManager; ==7.2.5;
*:FortiProxy; >=7.6.0, <=7.6.1;
FortiOS:FortiOS; >=7.4.4, <=7.4.6; ==7.6.0;

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

More information:

CVE-2025-22252 at cve.org, NVD
CWE-306: Missing Authentication for Critical Function at cwe.mitre.org

The vulnerability was publicly disclosed 13. 5. 2025.

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[TLP:CLEAR] Fortinet fixes a critical vulnerability in various products

Fortinet FortiOS, FortiProxy, FortiSwitchManager - unauthorized admin access (CVE-2025-22252)

CVSS 9.8 (Critical)

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