Medium6.9Fortinet

Medium [CVE-2025-58413] stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2…

This medium-severity Fortinet advisory covers CVE-2025-58413 affecting FortiOS, FortiSASE.

CVE-2025-58413 Published Nov 18, 2025Updated by vendor Nov 21, 2025

CVE-2025-58413

Affected products & platforms

FortinetFortiGateFirewallFortiOS

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Summary

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiSASE 25.3.b allows attacker to execute unauthorized code or commands via specially crafted packets

Affected versions

FortiOS: 6.0.0 through 7.6.3 (vendor-listed versions)
FortiSASE: 25.3.b

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Fixed versions

FortiOS 7.6: 7.6.4
FortiOS 7.4: 7.4.9
FortiOS 7.2: migrate to a fixed release
FortiOS 7.0: migrate to a fixed release
FortiOS 6.4: migrate to a fixed release
FortiOS 6.2: migrate to a fixed release
FortiOS 6.0: migrate to a fixed release

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Upgrade per the Affected/Solution table: FortiOS 7.6: 7.6.4; FortiOS 7.4: 7.4.9; FortiOS 7.2: migrate to a fixed release; FortiOS 7.0: migrate to a fixed release; FortiOS 6.4: migrate to a fixed release; ….

Temporary workarounds

Warning :if auto-auth-extension-device is enabled in config system interface, any devicecan be authorized and then the vulnerability can be exploited without administratorauthorization.Please note that auto-auth-extension-device is disabled by default

Official advisory · high-confidence parse· fetched 1 day ago·verify at source

Sources

Official and corroborating records used to build this advisory.

FortiGuard PSIRT Advisoriesofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://filestore.fortinet.com/fortiguard/rss/ir.xml; this link opens the Fortinet advisory index instead of the raw feed document.
Fortinet
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Fortinet
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2025-58413NVD CVE.org MITRE

Official resources

FortiGate / FortiOS documentation & release notes (target: 7.6 / 7.4 / 7.2)
Release notes
This advisory names 7.6 / 7.4 / 7.2 as the first fixed releases — official upgrade documentation for FortiGate / FortiOS firewalls.
Fortinet Upgrade Path Tool
Official documentation
Official tool to plan a supported FortiOS upgrade path from your current build to the fixed release.

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