CVE-2018-13383Used in ransomware
Fortinet FortiOS and FortiProxy
Fortinet FortiOS and FortiProxy Out-of-bounds Write
What it is
A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users.
What to do
Apply updates per vendor instructions.
Vendor notices and references
Description and required action as published by CISA. Full record at NVD.
Other Fortinet entries on the list
- Multiple Products Fortinet Multiple Products Path Traversal Vulnerability CVE-2025-61624 · Oct 16, 2026
- FortiMail Fortinet FortiMail Path Traversal Vulnerability CVE-2026-104286 · Oct 1, 2026
- Multiple Products Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability CVE-2025-25249 · Sep 9, 2026
- FortiOS Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability CVE-2025-68686 · Jul 27, 2026
- FortiSandbox Fortinet FortiSandbox OS Command Injection Vulnerability CVE-2026-39808 · Jul 16, 2026
- FortiSandbox Fortinet FortiSandbox OS Command Injection Vulnerability CVE-2026-25089 · Jul 16, 2026