December 13, 2022 · Applied Cybernetics Group
CVE-2022-42475 — Fortinet FortiOS
known ransomware use
Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
- Added to KEV
2022-12-13- Federal due date
2023-01-03- Vendor
- Fortinet
- Product
- FortiOS
- EPSS
- 99.9th percentile (score 0.995, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- ATT&CK
- T1071.001 , T1190 , T1574 , T1622 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2022-42475
CISA short description
Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.
Required action
Apply updates per vendor instructions.