CVE-2025-25255

CVSS 4.8 MEDIUMEPSS 0.4%CWE-358

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.8EPSS 0.4%KEV nãoPoC —Patch —

Lifecycle

14 Oct 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user to bypass the domain fronting protection feature via crafted HTTP requests.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C

Affected products

Fortinet · FortiOS Fortinet · FortiProxy

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-372