CVE-2025-22252: TACACS+ authentication bypass
First published: Tue May 13 2025(Updated: )
A missing authentication for critical function vulnerability [CWE-306] in FortiOS, FortiProxy, and FortiSwitchManager TACACS+ configured to use a remote TACACS+ server for authentication, that has itself been configured to use ASCII authentication may allow an attacker with knowledge of an existing admin account to access the device as a valid admin via an authentication bypass.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FortiOS | =. | |
| FortiOS | >=7.4.4<=7.4.6 | |
| Fortinet FortiProxy SSL VPN webmode | >=7.6.0<=7.6.1 | |
| Fortinet FortiSwitchManager | =. |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-22252?
CVE-2025-22252 is considered a critical vulnerability due to the missing authentication for critical functions.
How do I fix CVE-2025-22252?
To fix CVE-2025-22252, upgrade your FortiOS, FortiProxy, or FortiSwitchManager to the recommended version as outlined in the vendor's guidance.
What products are affected by CVE-2025-22252?
CVE-2025-22252 affects FortiOS, FortiProxy, and FortiSwitchManager when configured with a remote TACACS+ server using ASCII authentication.
What versions of Fortinet software should I upgrade to for CVE-2025-22252?
You should upgrade FortiOS to version 7.6.1 or later, FortiProxy to version 7.6.2 or later, and FortiSwitchManager to version 7.2.6 or later.
What type of attacks can exploit CVE-2025-22252?
Attackers may exploit CVE-2025-22252 to gain unauthorized access to critical functions due to the lack of proper authentication.
- collector/fortiguard-psirt-latest
- source/FortiGuard
- alias/CVE-2025-22252
- agent/last-modified-date
- agent/source
- agent/type
- agent/first-publish-date
- agent/event
- collector/fortiguard-psirt
- agent/software-canonical-lookup
- agent/severity
- agent/title
- agent/references
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- agent/tags
- agent/softwarecombine
- vendor/fortinet
- canonical/fortios
- version/fortios/.
- version/fortios/7.4.4
- version/fortios/7.4.6
- canonical/fortinet fortiproxy ssl vpn webmode
- version/fortinet fortiproxy ssl vpn webmode/7.6.0
- version/fortinet fortiproxy ssl vpn webmode/7.6.1
- canonical/fortinet fortiswitchmanager
- version/fortinet fortiswitchmanager/.