onyx

onyx --cves cve-2024-55591

CVE-2024-55591

N/AKEVNUCLEI ↗Fortinet FortiOS
score
0.1
cvss
—
epss
94.3% ▲0.2
published
—
kev added
2025-01-14
first seen

Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2025-01-14 — Added to CISA KEVK2026-10-21 — Tracked by OnyxT2026-10-21 (seen by) — Nuclei template: Fortinet - Authentication BypassNscore2026-10-21: score 0.10.1epss2026-09-22: epss 98.3%2026-09-23: epss 98.3%2026-09-24: epss 94.1%2026-09-25: epss 94.1%2026-09-26: epss 94.1%2026-09-27: epss 94.1%2026-09-29: epss 94.1%2026-09-30: epss 94.1%2026-10-01: epss 94.1%2026-10-02: epss 94.1%2026-10-03: epss 94.1%2026-10-04: epss 94.1%2026-10-05: epss 94.1%2026-10-06: epss 94.1%2026-10-07: epss 94.1%2026-10-08: epss 94.1%2026-10-09: epss 94.1%2026-10-10: epss 94.1%2026-10-11: epss 94.1%2026-10-12: epss 94.1%2026-10-13: epss 94.1%2026-10-14: epss 94.1%2026-10-15: epss 94.1%2026-10-16: epss 94.1%2026-10-18: epss 94.1%2026-10-19: epss 94.1%2026-10-20: epss 94.1%2026-10-21: epss 94.3%94.3%mentions/day0no mentions in 30 days2026-09-22today
  1. Added to CISA KEV
  2. Tracked by Onyx
  3. Nuclei template Fortinet - Authentication Bypass

Nuclei template

A verified check exists — you can scan for this today, and so can everyone else.

template
Fortinet - Authentication Bypass
severity
CRIT
first seen
nuclei -id CVE-2024-55591 -u https://target.example

Weaknesses

CWE-288

References 2