Trusted hosts bypass via SSH
CVSSv3 Score: 1.8 An Improper Privilege Management vulnerability [CWE-269] in FortiOS, FortiProxy and FortiPAM may allow an authenticated administrator to bypass the trusted host policy via crafted CLI command. Revised on 2026-05-27 00:00:00
CSIRTS triage
- What
- An authenticated administrator can bypass the trusted host policy via crafted CLI command.
- Who is affected
- Authenticated administrators of FortiOS, FortiProxy, and FortiPAM.
- Urgency
- Remediation is necessary due to the potential for privilege escalation.
- Action
- Review and restrict CLI command usage to mitigate the issue.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch FortiOS
Get an email when a new FortiOS advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-25-545
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-548210.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-54821 | coverage & exploitation status | NVD · CVE.org |
More from Fortinet FortiGuard PSIRT
- unknownSecond-Order OS Command Injection via JSON Input on start vnc feature2026-06-09
- unknownImproper access control in API endpoints2026-06-09
- unknownRestricted CLI escape using Lua2026-06-09
- unknownLinux Kernel vulnerability Dirty Frag2026-06-03
- unknownLinux Kernel Vulnerability copy.fail - CVE-2026-314312026-05-13