CVE-2022-42475 - Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
Project:Fortinet
Product:FortiOS
Date Added:2022-12-13Due Date:2023-01-03
Vulnerability Name
Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
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.
Known To Be Used in Ransomware Campaigns?
Known
Action
Apply updates per vendor instructions.
Additional Notes
https://www.fortiguard.com/psirt/FG-IR-22-398
https://nvd.nist.gov/vuln/detail/CVE-2022-42475
Related News Articles
Hackers now exploiting critical Fortinet FortiSIEM flaw in attacksJanuary 16, 2026
Over 10K Fortinet firewalls exposed to actively exploited 2FA bypassJanuary 3, 2026
Critical Fortinet flaws now exploited in Qilin ransomware attacksJune 6, 2025
Fortinet Warns Attackers Retain FortiGate Access Post-Patching via SSL-VPN Symlink ExploitApril 12, 2025
Hackers exploit old FortiGate vulnerabilities, use symlink trick to retain limited access to patched devicesApril 12, 2025