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Fortinet exploited vulnerabilities: 32 in CISA KEV, 12 in the last 12 months

Gociux · updated with each KEV addition · latest 16 Oct 2026

CISA lists 32 Fortinet vulnerabilities as exploited in the wild, 12 of them added in the last 12 months (up from 5 in the 12 months before). 14 (44%) are known to be used in ransomware campaigns. For entries added in the last two years, the median time from CVE publication to the KEV listing was 7 days. Most affected: FortiOS (9), Multiple Products (7), FortiOS and FortiProxy (4).

32in CISA KEV
12last 12 months
44%ransomware-linked
7dpublication → KEV (median)

Exploited CVEs added per year

452489
202120222023202420252026

Most affected products

ProductKEV entries
FortiOS9
Multiple Products7
FortiOS and FortiProxy4
FortiClient EMS3
FortiWeb3
FortiSandbox2
FortiMail1
FortiManager1
FortiOS and FortiProxy SSL-VPN1
FortiOS and FortiADC1

Every exploited Fortinet CVE

CVEVulnerabilityAdded
CVE-2025-61624Fortinet Multiple Products Path Traversal VulnerabilityMultiple Products16 Oct 2026
CVE-2026-104286Fortinet FortiMail Path Traversal VulnerabilityFortiMail1 Oct 2026
CVE-2025-25249Fortinet Multiple Products Heap-based Buffer Overflow VulnerabilityMultiple Products9 Sep 2026
CVE-2025-68686Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor VulnerabilityFortiOS27 Jul 2026
CVE-2026-39808Fortinet FortiSandbox OS Command Injection VulnerabilityFortiSandbox16 Jul 2026
CVE-2026-25089Fortinet FortiSandbox OS Command Injection VulnerabilityFortiSandbox16 Jul 2026
CVE-2026-21643Fortinet FortiClient EMS SQL Injection VulnerabilityFortiClient EMS13 Apr 2026
CVE-2026-35616Fortinet FortiClient EMS Improper Access Control VulnerabilityFortiClient EMS6 Apr 2026
CVE-2026-24858Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel VulnerabilityMultiple Products27 Jan 2026
CVE-2025-59718Fortinet Multiple Products Improper Verification of Cryptographic Signature VulnerabilityMultiple Products16 Dec 2025
CVE-2025-58034Fortinet FortiWeb OS Command Injection VulnerabilityFortiWeb18 Nov 2025
CVE-2025-64446Fortinet FortiWeb Path Traversal VulnerabilityFortiWeb14 Nov 2025
CVE-2025-25257Fortinet FortiWeb SQL Injection VulnerabilityFortiWeb18 Jul 2025
CVE-2019-6693Fortinet FortiOS Use of Hard-Coded Credentials VulnerabilityRANSOMWAREFortiOS25 Jun 2025
CVE-2025-32756Fortinet Multiple Products Stack-Based Buffer Overflow VulnerabilityMultiple Products14 May 2025
CVE-2025-24472Fortinet FortiOS and FortiProxy Authentication Bypass VulnerabilityRANSOMWAREFortiOS and FortiProxy18 Mar 2025
CVE-2024-55591Fortinet FortiOS and FortiProxy Authentication Bypass VulnerabilityRANSOMWAREFortiOS and FortiProxy14 Jan 2025
CVE-2024-47575Fortinet FortiManager Missing Authentication VulnerabilityFortiManager23 Oct 2024
CVE-2024-23113Fortinet Multiple Products Format String VulnerabilityMultiple Products9 Oct 2024
CVE-2023-48788Fortinet FortiClient EMS SQL Injection VulnerabilityRANSOMWAREFortiClient EMS25 Mar 2024
CVE-2024-21762Fortinet FortiOS Out-of-Bound Write VulnerabilityRANSOMWAREFortiOS9 Feb 2024
CVE-2023-27997Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow VulnerabilityRANSOMWAREFortiOS and FortiProxy SSL-VPN13 Jun 2023
CVE-2022-41328Fortinet FortiOS Path Traversal VulnerabilityFortiOS14 Mar 2023
CVE-2022-42475Fortinet FortiOS Heap-Based Buffer Overflow VulnerabilityRANSOMWAREFortiOS13 Dec 2022
CVE-2022-40684Fortinet Multiple Products Authentication Bypass VulnerabilityRANSOMWAREMultiple Products11 Oct 2022
CVE-2018-13374Fortinet FortiOS and FortiADC Improper Access Control VulnerabilityRANSOMWAREFortiOS and FortiADC8 Sep 2022
CVE-2018-13383Fortinet FortiOS and FortiProxy Out-of-bounds WriteRANSOMWAREFortiOS and FortiProxy10 Jan 2022
CVE-2018-13382Fortinet FortiOS and FortiProxy Improper AuthorizationRANSOMWAREFortiOS and FortiProxy10 Jan 2022
CVE-2021-44168Fortinet FortiOS Arbitrary File DownloadFortiOS10 Dec 2021
CVE-2020-12812Fortinet FortiOS SSL VPN Improper Authentication VulnerabilityRANSOMWAREFortiOS3 Nov 2021
CVE-2019-5591Fortinet FortiOS Default Configuration VulnerabilityRANSOMWAREFortiOS3 Nov 2021
CVE-2018-13379Fortinet FortiOS SSL VPN Path Traversal VulnerabilityRANSOMWAREFortiOS3 Nov 2021

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How to read this: CISA KEV lists vulnerabilities with reliable evidence of exploitation; a vendor with many entries is often one with a large, internet-facing install base, not necessarily worse engineering. "Publication → KEV" is the median number of days between the CVE's publication and its addition to KEV, for entries added in the last 24 months (17 entries); it is an upper bound on how long defenders had, since exploitation usually starts before the listing. Under NIS2 article 21(2)(d), supplier security is part of your risk management; this page is a starting point for that review. Compare vendors on the scorecard index.

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