CVE-2022-40684Vulnerability
Fortinet Multiple Products Authentication Bypass Vulnerability
Reported by 3 independent sources · first reported by GreyNoise · last reported
Last reported 30 days ago
Fix due 1 Nov 2022
Used by ransomware: knownCISA KEV catalogue
higher than 99% of CVEsFIRST EPSS, as of 26 Sep 2026
What the reports say
3 reports, newest first · the exact sentence from each-
Operation Master: Deconstructing a Multi-Tiered Intrusion and Monetization Pipeline“# Firewall auth-bypass probe across internal gateway subnets (CVE-2022-40684 class):”
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June 2026 CVE Landscape“CVE-2022-40684”
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Hackers Actively Exploiting Fortinet Firewalls: Real-Time Insights from GreyNoise“This breach, tied to CVE-2022-40684 — an authentication bypass vulnerability disclosed in late 2022 — has created new opportunities for attackers to exploit these devices.”
Indicators reported together
named in the same reportsAlso named with it: CVE-2021-36260, CVE-2026-25089, CVE-2026-39808, CVE-2026-11645, CVE-2026-28318, CVE-2026-20230, CVE-2026-35616, CVE-2026-33825, CVE-2025-55182, CVE-2026-21509, CVE-2025-8088, CVE-2025-6218, CVE-2026-35273, CVE-2021-4034, CVE-2021-27137, CVE-2026-46817, CVE-2026-48907, CVE-2026-0257, CVE-2026-12569, CVE-2022-27925
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