High Threat Security Alert (A26-01-06): Multiple Vulnerabilities in Fortinet Products


 

Published on: 14 January 2026

Last update on: 10 September 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.

Reports indicated that a remote code execution vulnerability (CVE-2025-25249) is being exploited in the wild. System administrators are advised to take immediate action to patch affected systems to mitigate the elevated risk of cyber attacks.

 

Affected Systems:

  • FortiClientEMS version 7.0 (all versions), version 7.2.0 through 7.2.10, version 7.4.0 through 7.4.1, version 7.4.3 through 7.4.4
  • FortiFone version 3.0.13 through 3.0.23, version 7.0.0 through 7.0.1
  • FortiOS version 6.4, version 7.0.0 through 7.0.17, version 7.2.0 through 7.2.11, version 7.4.0 through 7.4.8, version 7.6.0 through 7.6.3
  • FortiSASE version 25.1.a.2, version 25.2.b
  • FortiSIEM version 6.7.0 through 6.7.10, version 7.0.0 through 7.0.4, version 7.1.0 through 7.1.8, version 7.2.0 through 7.2.6, version 7.3.0 through 7.3.4, version 7.4.0
  • FortiSandbox version 4.0 (all versions), version 4.2 (all versions), version 4.4 (all versions), version 5.0.0 through 5.0.4
  • FortiSwitchManager version 7.0.0 through 7.0.5, version 7.2.0 through 7.2.6
  • FortiVoice version 7.0.0 through 7.0.7, version 7.2.0 through 7.2.2

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 remote code execution, information disclosure, security restriction bypass or tampering 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-25-084
  • https://fortiguard.fortinet.com/psirt/FG-IR-25-260
  • https://fortiguard.fortinet.com/psirt/FG-IR-25-735
  • https://fortiguard.fortinet.com/psirt/FG-IR-25-772
  • https://fortiguard.fortinet.com/psirt/FG-IR-25-778
  • https://fortiguard.fortinet.com/psirt/FG-IR-25-783
  • https://www.hkcert.org/security-bulletin/fortinet-products-remote-code-execution-vulnerabilities_20260114
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-25249
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-47855
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58693
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-59922
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-64155
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-67685


Tag: Fortinet , FortiClientEMS , FortiFone , FortiOS , FortiSASE , FortiSIEM , FortiSandbox , FortiSwitchManager , FortiVoice
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