Product of Fortinet

FortiOS

As of , 9 Fortinet FortiOS vulnerabilities are on CISA's list of exploited vulnerabilities, 6 of them used in ransomware campaigns; 1 was added in 2026. Patch first: CVE-2018-13379.

Patch first

Patch first
#VulnerabilityProductOur groupListedDeadlineEPSS
1CVE-2018-13379SSL VPN Path TraversalFortinet FortiOSPatch this weekRansomware use; Metasploit module; EPSS 0.990.99
2CVE-2024-21762Out-of-Bound WriteFortinet FortiOSPatch this weekRansomware use; EPSS 0.830.83
3CVE-2022-42475Heap-Based Buffer OverflowFortinet FortiOSPatch this weekRansomware use; EPSS 0.990.99
4CVE-2020-12812SSL VPN Improper AuthenticationFortinet FortiOSPatch this weekRansomware use0.45
5CVE-2019-5591Default ConfigurationFortinet FortiOSPatch this weekRansomware use0.18
6CVE-2019-6693Use of Hard-Coded CredentialsFortinet FortiOSPatch this weekRansomware use0.06
7CVE-2025-68686Exposure of Sensitive Information to an Unauthorized ActorFortinet FortiOSPatch soon0.30
8CVE-2022-41328Path TraversalFortinet FortiOSPatch soon0.11
9CVE-2021-44168Arbitrary File DownloadFortinet FortiOSPatch soon0.01

Added each year

12342021: 4420212022: 1120222023: 1120232024: 1120242025: 1120252026: 112026
Entries CISA added each year, removed ones included. Source: CISA KEV.
Show the numbers
Periodentries added
20214
20221
20231
20241
20251
20261

Used in ransomware

Changes CISA made to these entries

  1. CVE-2019-5591 Fortinet FortiOSRansomware use: Unknown to Known.
  2. CVE-2019-6693 Fortinet FortiOSRansomware use: Unknown to Known.
  3. CVE-2024-21762 Fortinet FortiOSRansomware use: Unknown to Known.
  4. CVE-2022-42475 Fortinet FortiOSRansomware use: Unknown to Known.

Every change we recorded