Critical severity9.8CISA KEVNVD Advisory· Published Jan 14, 2025· Updated Aug 5, 2026
CVE-2024-55591
CVE-2024-55591
Description
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*range: >=7.0.0,<7.0.20
- (no CPE)range: 7.0.0-7.0.19, 7.2.0-7.2.12
- (no CPE)range: 7.2.0
Patches
Vulnerability mechanics
References
2- fortiguard.fortinet.com/psirt/FG-IR-24-535nvdMitigationVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
17- The Good, the Bad and the Ugly in Cybersecurity – Week 33SentinelOne Labs · Aug 14, 2026
- Gunra Uses Stolen Sessions and RDP to Pivot Into Active Directory and IT WorkstationsCyber Security News · Aug 13, 2026
- Gunra Ransomware Exploits Fortinet Flaws to Target Critical InfrastructureInfosecurity Magazine · Aug 12, 2026
- Alert: Unpatched Fortinet Devices Fall to Gunra RansomwareGovInfoSecurity · Aug 11, 2026
- Gunra Ransomware Gang Exploits Fortinet Flaws, Bypasses MFADark Reading · Aug 11, 2026
- FBI, South Korea warn of Gunra ransomware gang targeting critical infrastructureThe Record · Aug 10, 2026
- Gunra Ransomware Exploits Fortinet VPN Flaws to Bypass MFA and Steal Enterprise DataCyber Security News · Aug 10, 2026
- Ransomware Groups Increasingly Deploy EDR Kill TechniquesInfosecurity Magazine · Jul 27, 2026
- No Manners Here: The Ruthless Rise of The Gentlemen RansomwareUnit 42 · Jul 10, 2026
- The Gentlemen Ransomware With Custom EDR/AV Killers Scaling Faster to Attack Industries WorldwideCyber Security News · Jul 7, 2026
- The Gentlemen Ransomware Claims 478 Victims, Can Spread Like a WormThe Hacker News · Jun 11, 2026
- The Gentlemen Ransomware Group Uses Fortinet Exploits, AI, and Custom C2 FrameworksCyber Security News · Jun 3, 2026
- Russian Threat Groups Use RDP, VPN, Supply Chain Attacks, and Social Engineering for Initial AccessCyber Security News · May 22, 2026
- Thus Spoke…The GentlemenCheck Point Research · May 13, 2026
- The State of Ransomware – Q1 2026Check Point Research · May 11, 2026
- Ransomware Tactics, Techniques, and Procedures in a Shifting Threat LandscapeMandiant Threat Intelligence · Mar 16, 2026
- #StopRansomware: Gunra RansomwareCISA Alerts