Improper neutralization of special elements in output used by a downstream component in sshd
FG-IR-26-269
Summary
CVSSv3 Score:
5.9
An Improper Authentication vulnerability [CWE-287] in the FortiOS Remote Radius Type Admin Two-Factor (TFA) Authentication may allow a remote authenticated attacker with at least read-only permission to log in to the FortiOS GUI with an invalid token after entering a valid username and password, in scenarios where the RADIUS server returns an additional "Access-Challenge" response following an invalid TFA token.
Revised on 2026-11-10 00:00:00
Products covered
FortiOS
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Updates
- Published by Fortinet
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.