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Fortinet

FortiOS vulnerabilities (CVE): affected branches, fixed releases, CISA KEV

Affected branches, fixed releases stated by the vendor and known exploitation for Fortinet FortiOS.

Sources last modified 30 Sept 2026 · Last verified by Patcharo: 1 Oct 2026 at 12:17 UTC

60
CVEs tracked
13
Critical
11
CISA KEV
0
With a fixed release

Versions by branch

Per branch: the newest release the vendor lists, what the vendor recommends and for whom, the support state and when Patcharo last verified each fact. Three facts read from the vendor's documents and shown apart: the newest release is not a recommendation.

Filter the branches

21 branches shown

  1. 8.0Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportSupported · until 21 Oct 2030
    Vulnerabilities0 CVEs
  2. 7.6Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportSupported · until 25 Jan 2030
    Vulnerabilities22 CVEs · 4 KEVnewest fix 7.6.7
  3. 7.4Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportSupported · until 11 Nov 2028
    Vulnerabilities45 CVEs · 6 KEVnewest fix 7.4.11
  4. 7.2Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportEnd of life · until 30 Sept 2026
    Vulnerabilities50 CVEs · 9 KEVnewest fix 7.2.13
  5. 7.0Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportEnd of life · until 30 Sept 2025
    Vulnerabilities48 CVEs · 11 KEVnewest fix 7.0.19
  6. 6.4Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportEnd of life · until 30 Sept 2024
    Vulnerabilities40 CVEs · 6 KEVnewest fix 6.4.16
  7. 6.2Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportEnd of life · until 28 Sept 2023
    Vulnerabilities25 CVEs · 4 KEVnewest fix 6.2.17
  8. 6.0Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation
    SupportEnd of life · until 29 Sept 2022
    Vulnerabilities19 CVEs · 4 KEVnewest fix 6.0.18
  9. 5.6Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 30 Sept 2021
    Vulnerabilities5 CVEs · 1 KEVnewest fix 5.6.13
  10. 5.4Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 21 Jun 2020
    Vulnerabilities3 CVEs · 1 KEV
  11. 5.2Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 13 Dec 2018
    Vulnerabilities3 CVEs · 1 KEV
  12. 5.0Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 1 May 2017
    Vulnerabilities3 CVEs · 1 KEV
  13. 4.3Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 19 Mar 2014
    Vulnerabilities1 CVE
  14. 4.2Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 1 Apr 2013
    Vulnerabilities1 CVE
  15. 4.1Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 24 Aug 2012
    Vulnerabilities1 CVE
  16. 4.0Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 24 Feb 2012
    Vulnerabilities1 CVE
  17. 3.7Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 18 Jul 2011
    Vulnerabilities0 CVEs
  18. 3.6Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 4 Feb 2011
    Vulnerabilities0 CVEs
  19. 3.5Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 3 Jul 2010
    Vulnerabilities0 CVEs
  20. 3.4Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 29 Dec 2009
    Vulnerabilities0 CVEs
  21. 3.3Not collected
    Latest public release

    No release listed in the sources Patcharo reads

    Vendor recommendation

    SupportEnd of life · until 2 Oct 2009
    Vulnerabilities0 CVEs

Last successful check against the source. The content may be unchanged. Checked about every 6 hours (192 hours for a branch past its support); “page verified recently” means a successful check within the last 24 hours. Availability, recommendation and support are read from the vendor's documents and shown apart; a release Patcharo lists is not advice to install it.

Vulnerability history

Every CVE NVD attaches to FortiOS over the period, whatever its score: published records only, rejected identifiers kept apart. Counts are publication counts.

Last 10 years · 14 Nov 2016 – 14 Nov 2026 · Rolling calendar period, by publication date of the CVE record; both days included.

The history could not be read right now. The list below shows the analysed catalog only.

Verified history · History not collected yet: the counts above are not a measure.

Scores and statuses are the facts known today, not their history.

CVEs published over the period

14 Nov 2016 – 14 Nov 2026 · Newest first. A record analysed by Patcharo links to its page with affected and fixed releases; the others show NVD's facts.

The history could not be read right now. The list below shows the analysed catalog only.

Analysed vulnerabilities

  1. CVE-2026-71407Published: High8.1CVSS 3.1, HighEPSS0.42%
  2. CVE-2025-53844Published: High8.8CVSS 3.1, HighEPSS0.56%
  3. CVE-2025-53847Published: High8.8CVSS 3.1, HighEPSS0.28%
  4. CVE-2025-68686Published: Medium5.9CVSS 3.1, MediumKEVDue 10 Aug 2026EPSS30%
  5. CVE-2025-64157Published: High7.2CVSS 3.1, HighEPSS1%
  6. CVE-2026-22153Published: High8.1CVSS 3.1, HighEPSS0.71%
  7. CVE-2026-24858Published: Critical9.8CVSS 3.1, CriticalKEVDue 30 Jan 2026EPSS86%
  8. CVE-2025-25249Published:

    Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability

    Fortinet FortiOS, Fortinet FortiSwitchManager

    Critical9.8CVSS 3.1, CriticalKEVDue 12 Sept 2026EPSS4%
  9. CVE-2025-59718Published:

    Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

    Fortinet FortiOS, Fortinet FortiProxy, Fortinet FortiSwitchManager

    Critical9.8CVSS 3.1, CriticalKEVDue 23 Dec 2025EPSS68%
  10. CVE-2025-53843Published: High7.5CVSS 3.1, HighEPSS0.59%
  11. CVE-2025-58413Published: High7.5CVSS 3.1, HighEPSS0.32%
  12. CVE-2023-46718Published: High7.8CVSS 3.1, HighEPSS0.19%
  13. CVE-2024-50571Published: High7.2CVSS 3.1, HighEPSS0.54%
  14. CVE-2025-22258Published: High7.2CVSS 3.1, HighEPSS0.56%
  15. CVE-2025-25253Published: High7.5CVSS 3.1, HighEPSS0.11%
  16. CVE-2025-57740Published: High8.8CVSS 3.1, HighEPSS0.68%
  17. CVE-2024-26009Published: High8.1CVSS 3.1, HighEPSS0.59%
  18. CVE-2023-45584Published: High7.2CVSS 3.1, HighEPSS0.59%
  19. CVE-2025-53744Published: High7.2CVSS 3.1, HighEPSS0.63%
  20. CVE-2024-52965Published: High7.2CVSS 3.1, HighEPSS0.28%
  21. CVE-2025-22254Published: High7.2CVSS 3.1, HighEPSS0.85%
  22. CVE-2025-22252Published: High7.2CVSS 3.1, HighEPSS0.94%
  23. CVE-2024-50565Published: High7.5CVSS 3.1, HighEPSS0.39%
  24. CVE-2024-26013Published: High7.5CVSS 3.1, HighEPSS0.50%
  25. CVE-2023-37930Published: High8.8CVSS 3.1, HighEPSS0.63%
  26. CVE-2023-25610Published: Critical9.8CVSS 3.1, CriticalEPSS18%
  27. CVE-2024-45324Published: High7.2CVSS 3.1, HighEPSS0.72%
  28. CVE-2025-24472Published: High8.1CVSS 3.1, HighKEVRansomwareDue 8 Apr 2025EPSS7%
  29. CVE-2024-35279Published: High8.1CVSS 3.1, HighEPSS1%
  30. CVE-2024-40591Published: High7.2CVSS 3.1, HighEPSS0.62%
  31. CVE-2024-48886Published: Critical9.8CVSS 3.1, CriticalEPSS0.48%
  32. CVE-2024-48884Published: Critical9.1CVSS 3.1, CriticalEPSS15%
  33. CVE-2024-46668Published: High7.5CVSS 3.1, HighEPSS1.00%
  34. CVE-2024-46670Published: High7.5CVSS 3.1, HighEPSS0.63%
  35. CVE-2024-55591Published: Critical9.8CVSS 3.1, CriticalKEVRansomwareDue 21 Jan 2025EPSS94%
  36. CVE-2020-12820Published: High8.8CVSS 3.1, HighEPSS0.89%
  37. CVE-2020-12819Published: High7.5CVSS 3.1, HighEPSS0.79%
  38. CVE-2024-26011Published: Critical9.8CVSS 3.1, CriticalEPSS0.60%
  39. CVE-2023-50176Published: High8.8CVSS 3.1, HighEPSS0.40%
  40. CVE-2022-45862Published: High8.8CVSS 3.1, HighEPSS0.44%
  41. CVE-2024-26010Published: High7.5CVSS 3.1, HighEPSS0.79%
  42. CVE-2023-46720Published: High7.8CVSS 3.1, HighEPSS0.28%
  43. CVE-2024-23110Published: High7.8CVSS 3.1, HighEPSS0.28%
  44. CVE-2023-45583Published: High7.2CVSS 3.1, HighEPSS0.66%
  45. CVE-2023-46714Published: High7.2CVSS 3.1, HighEPSS1%
  46. CVE-2023-44247Published: High7.2CVSS 3.1, HighEPSS1%
  47. CVE-2024-26007Published: High7.5CVSS 3.1, HighEPSS1%
  48. CVE-2023-41677Published: High8.8CVSS 3.1, HighEPSS0.75%
  49. CVE-2024-23662Published: High7.5CVSS 3.1, HighEPSS0.70%
  50. CVE-2023-46717Published: High8.8CVSS 3.1, HighEPSS0.64%
  51. CVE-2023-42789Published: Critical9.8CVSS 3.1, CriticalEPSS3%
  52. CVE-2023-42790Published: High8.1CVSS 3.1, HighEPSS1%
  53. CVE-2023-29180Published: High7.5CVSS 3.1, HighEPSS3%
  54. CVE-2023-29181Published: High8.8CVSS 3.1, HighEPSS0.72%
  55. CVE-2024-23113Published:

    Fortinet Multiple Products Format String Vulnerability

    Fortinet FortiOS, Fortinet FortiProxy, Fortinet FortiSwitchManager

    Critical9.8CVSS 3.1, CriticalKEVDue 30 Oct 2024EPSS62%
  56. CVE-2024-21762Published:

    Fortinet FortiOS Out-of-Bound Write Vulnerability

    Fortinet FortiProxy, Fortinet FortiOS

    Critical9.8CVSS 3.1, CriticalKEVRansomwareDue 16 Feb 2024EPSS83%
  57. CVE-2023-44250Published: High8.8CVSS 3.1, HighEPSS0.90%
  58. CVE-2023-27997Published:

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

    Fortinet FortiProxy, Fortinet FortiOS, Fortinet FortiOS-6K7K

    Critical9.8CVSS 3.1, CriticalKEVRansomwareDue 4 Jul 2023EPSS86%
  59. CVE-2022-41328Published: High7.1CVSS 3.1, HighKEVDue 4 Apr 2023EPSS11%
  60. CVE-2022-42475Published: Critical9.8CVSS 3.1, CriticalKEVRansomwareDue 3 Jan 2023EPSS99%

Vendor recommendation

The vendor's own statement about what to run, with its date and source. Separate from vulnerabilities and from support status: being behind a recommendation is not a vulnerability, and a supported release is not necessarily the recommended one.

Recommended release per model

The vendor states one recommended release per hardware model (118 models); models are grouped by recommended release.

Vendor wording: “Recommended Release Version” · vendor statement dated 1 Jun 2026

7.6.6
FortiGate-40F, FortiGate-40F-3G4G, FortiGate-50G/51G and variants, FortiGate-60F, FortiGate-61F, FortiGate-70F, FortiGate-70G/71G and variants, FortiGate-71F, FortiGate-80F, FortiGate-81F, FortiGate-90G, FortiGate-91G, FortiGate-100F, FortiGate-101F, FortiGate-120G, FortiGate-121G, FortiGate-200E, FortiGate-200F, FortiGate-200G/201G, FortiGate-201E, FortiGate-201F, FortiGate-300E, FortiGate-301E, FortiGate-400E, FortiGate-400E-BYPASS, FortiGate-400F, FortiGate-401E, FortiGate-401F, FortiGate-500E, FortiGate-501E, FortiGate-600E, FortiGate-600F, FortiGate-601E, FortiGate-601F, FortiGate-800D, FortiGate-900D, FortiGate-900G, FortiGate-901G, FortiGate-1000D, FortiGate-1000F, FortiGate-1001F, FortiGate-1100E, FortiGate-1101E, FortiGate-1800F, FortiGate-1801F, FortiGate-2000E, FortiGate-2200E, FortiGate-2201E, FortiGate-2500E, FortiGate-2600F, FortiGate-2601F, FortiGate-3000D, FortiGate-3000F, FortiGate-3001F, FortiGate-3100D, FortiGate-3200D, FortiGate-3200F, FortiGate-3201F, FortiGate-3300E, FortiGate-3301E, FortiGate-3400E, FortiGate-3401E, FortiGate-3500F, FortiGate-3501F, FortiGate-3600E, FortiGate-3601E, FortiGate-3700D, FortiGate-3700F, FortiGate-3701F, FortiGate-3960E, FortiGate-3980E, FortiGate-4200F, FortiGate-4201F, FortiGate-4400F, FortiGate-4401F, FortiGate-4800F, FortiGate-4801F, FortiGate-5001E, FortiGate-5001E1, FortiGate-6000F / 7000E / 7000F, FortiGate-VM64 - all versions, FortiGateRugged-60F, FortiGateRugged-60F-3G4G, FortiGateRugged-70F, FortiGateRugged-70F-3G4G, FortiWiFi-40F, FortiWiFi-40F-3G4G, FortiWiFi-50G/51G and variants, FortiWiFi-60F, FortiWiFi-61F, FortiWiFi-70G/71G and variants
7.4.11
FortiGate-30G, FortiGate-31G, FortiGate-60E, FortiGate-80E, FortiGate-81E, FortiGate-90E, FortiGate-140E, FortiWiFi-30G, FortiWifi-60E
7.2.13
FortiGate-1500D, FortiGate-1500DT
7.2.11
FortiGate-100E, FortiGate-101E
7.0.19
FortiGate-1200D, FortiGate-3800D
6.4.16
FortiGate-5001D
6.2.17
FortiGate-30E, FortiGate-50E, FortiGate-51E, FortiGate-52E, FortiGateRugged-35D, FortiWiFi-30E, FortiWiFi-50E, FortiWiFi-51E
6.0.18
FortiGate-98D-POE, FortiGate-240D, FortiGate-280D

Source: Technical Tip: Recommended release for FortiOS (as of June 2026)last verified by Patcharo 30 Sept 2026 at 21:18 UTC

CERT-FR

Advisories and alerts of the French national CERT referencing the CVEs of this product.

Some titles in this list are machine-translated by artificial intelligence (Mistral AI) from the source texts; each record shows the original.

Official sources