An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets.
https://fortiguard.com/advisory/FG-IR-20-191
Source: Mitre, NVD
Published: 2021-07-12
Updated: 2026-06-17
Base Score: 5.8
Vector: CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 9.6
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity: Critical
EPSS: 0.14149