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Fortinet Vulnerabilities

Known Exploited Vulnerabilities catalog entries for Fortinet products.

24
CVE Total
16
Critical
13
Ransomware
CVE-2026-24858 CRITICAL

Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability

Fortinet Multiple Products
CVSS 9.8
Added Jan 27
CVE-2025-59718 CRITICAL

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

Fortinet Multiple Products
CVSS 9.1
Added Dec 16
CVE-2025-58034 MEDIUM

Fortinet FortiWeb OS Command Injection Vulnerability

Fortinet FortiWeb
CVSS 6.7
Added Nov 18
CVE-2025-64446 CRITICAL

Fortinet FortiWeb Path Traversal Vulnerability

Fortinet FortiWeb
CVSS 9.4
Added Nov 14
CVE-2025-25257 CRITICAL

Fortinet FortiWeb SQL Injection Vulnerability

Fortinet FortiWeb
CVSS 9.6
Added Jul 18
CVE-2019-6693 MEDIUM Ransomware

Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability

Fortinet FortiOS
CVSS 6.5
Added Jun 25
CVE-2025-32756 CRITICAL

Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability

Fortinet Multiple Products
CVSS 9.6
Added May 14
CVE-2025-24472 HIGH Ransomware

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Fortinet FortiOS and FortiProxy
CVSS 8.1
Added Mar 18
CVE-2024-55591 CRITICAL Ransomware

Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability

Fortinet FortiOS and FortiProxy
CVSS 9.6
Added Jan 14
CVE-2024-47575 CRITICAL

Fortinet FortiManager Missing Authentication Vulnerability

Fortinet FortiManager
CVSS 9.8
Added Oct 23
CVE-2024-23113 CRITICAL

Fortinet Multiple Products Format String Vulnerability

Fortinet Multiple Products
CVSS 9.8
Added Oct 09
CVE-2023-48788 CRITICAL Ransomware

Fortinet FortiClient EMS SQL Injection Vulnerability

Fortinet FortiClient EMS
CVSS 9.3
Added Mar 25
CVE-2024-21762 CRITICAL Ransomware

Fortinet FortiOS Out-of-Bound Write Vulnerability

Fortinet FortiOS
CVSS 9.6
Added Feb 09
CVE-2023-27997 CRITICAL Ransomware

Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability

Fortinet FortiOS and FortiProxy SSL-VPN
CVSS 9.2
Added Jun 13
CVE-2022-41328 MEDIUM

Fortinet FortiOS Path Traversal Vulnerability

Fortinet FortiOS
CVSS 6.5
Added Mar 14
CVE-2022-42475 CRITICAL Ransomware

Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability

Fortinet FortiOS
CVSS 9.3
Added Dec 13
CVE-2022-40684 CRITICAL Ransomware

Fortinet Multiple Products Authentication Bypass Vulnerability

Fortinet Multiple Products
CVSS 9.8
Added Oct 11
CVE-2018-13374 MEDIUM Ransomware

Fortinet FortiOS and FortiADC Improper Access Control Vulnerability

Fortinet FortiOS and FortiADC
CVSS 4.3
Added Sep 08
CVE-2018-13382 CRITICAL Ransomware

Fortinet FortiOS and FortiProxy Improper Authorization

Fortinet FortiOS and FortiProxy
CVSS 9.1
Added Jan 10
CVE-2018-13383 MEDIUM Ransomware

Fortinet FortiOS and FortiProxy Out-of-bounds Write

Fortinet FortiOS and FortiProxy
CVSS 4.3
Added Jan 10
CVE-2021-44168 LOW

Fortinet FortiOS Arbitrary File Download

Fortinet FortiOS
CVSS 3.3
Added Dec 10
CVE-2018-13379 CRITICAL Ransomware

Fortinet FortiOS SSL VPN Path Traversal Vulnerability

Fortinet FortiOS
CVSS 9.1
Added Nov 03
CVE-2019-5591 MEDIUM

Fortinet FortiOS Default Configuration Vulnerability

Fortinet FortiOS
CVSS 6.5
Added Nov 03
CVE-2020-12812 CRITICAL Ransomware

Fortinet FortiOS SSL VPN Improper Authentication Vulnerability

Fortinet FortiOS
CVSS 9.8
Added Nov 03