Security Alert (A26-10-26): Multiple Vulnerabilities in Fortinet Products


 

Published on: 15 October 2026

Description:

Fortinet released security advisories to address multiple vulnerabilities in Fortinet systems. An attacker could exploit these vulnerabilities by sending specially crafted requests to an affected system.

 

Affected Systems:

  • FortiAnalyzer version 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, version 7.2 (all versions), version 7.6.0 through 7.6.4
  • FortiMail version 7.2.0 through 7.2.8, version 7.4.0 through 7.4.5, version 7.6.0 through 7.6.3
  • FortiManager version 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, version 7.2 (all versions), version 7.4.0 through 7.4.6, version 7.6.0 through 7.6.6, version 8.0.0
  • FortiOS version 7.2 (all versions), version 7.4 (all versions), version 7.6.0 through 7.6.7, version 7.6.4 through 7.6.6, version 8.0.0
  • FortiProxy version 7.2 (all versions), version 7.4 (all versions), version 7.6.0 through 7.6.6
  • FortiSwitch version 7.2 (all versions), version 7.4 (all versions), version 7.6.0 through 7.6.6

For detailed information of the affected products, please refer to the section 'Affected Products' of corresponding security advisory at vendor's website.

 

Impact:

Successful exploitation of the vulnerabilities could lead to spoofing, denial of service, information disclosure, tampering or elevation of privilege on an affected system.

 

Recommendation:

Patches for affected systems are available. System administrators of affected systems should follow the recommendations provided by the vendor and take immediate actions to mitigate the risk.

 

More Information:

  • https://fortiguard.fortinet.com/psirt/FG-IR-20-005
  • https://fortiguard.fortinet.com/psirt/FG-IR-26-177
  • https://fortiguard.fortinet.com/psirt/FG-IR-26-178
  • https://fortiguard.fortinet.com/psirt/FG-IR-26-181
  • https://fortiguard.fortinet.com/psirt/FG-IR-26-182
  • https://fortiguard.fortinet.com/psirt/FG-IR-26-184
  • https://www.hkcert.org/security-bulletin/fortinet-products-multiple-vulnerabilities_20261014
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12811
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-46773
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-57739
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-23705 (to CVE-2026-23707)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-106171
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-106174 (to CVE-2026-106175)


Tag: Fortinet , FortiAnalyzer , FortiMail , FortiManager , FortiOS , FortiProxy , FortiSwitch
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