Medium5.9Fortinet

Stack Buffer Overflow in Log Report

FG-IR-26-148 Published Jul 14, 2026Updated by vendor Jul 14, 2026

CVE-2026-59837

Affected products & platforms

FortinetFortiGateFirewallFortiOSFortiProxy

Summary

CVSSv3 Score: 5.9 A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiOS, FortiProxy and FortiPAM may allow a privileged authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests. Revised on 2026-07-14 00:00:00

Affected versions

FortiOS 7.4: 7.4.0 through 7.4.1
FortiOS 7.2: 7.2 all versions
FortiPAM 1.8: 1.8.0 through 1.8.2
FortiPAM 1.7: 1.7 all versions
FortiPAM 1.6: 1.6 all versions
FortiPAM 1.5: 1.5 all versions
FortiPAM 1.4: 1.4 all versions
FortiPAM 1.3: 1.3 all versions
FortiPAM 1.2: 1.2 all versions
FortiPAM 1.1: 1.1 all versions
FortiPAM 1.0: 1.0 all versions
FortiProxy 7.4: 7.4.0 through 7.4.13
FortiProxy 7.2: 7.2 all versions

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

FortiOS 7.4: 7.4.2
FortiOS 7.2: migrate to a fixed release
FortiPAM 1.8: 1.8.3
FortiPAM 1.7: migrate to a fixed release
FortiPAM 1.6: migrate to a fixed release
FortiPAM 1.5: migrate to a fixed release
FortiPAM 1.4: migrate to a fixed release
FortiPAM 1.3: migrate to a fixed release
FortiPAM 1.2: migrate to a fixed release
FortiPAM 1.1: migrate to a fixed release
FortiPAM 1.0: migrate to a fixed release
FortiProxy 7.4: 7.4.14
FortiProxy 7.2: migrate to a fixed release

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Upgrade per the Affected/Solution table: FortiOS 7.4: 7.4.2; FortiOS 7.2: migrate to a fixed release; FortiPAM 1.8: 1.8.3; FortiPAM 1.7: migrate to a fixed release; FortiPAM 1.6: migrate to a fixed release; ….

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Source evidence

What VulniPulse actually used to build this record — and why.

FortiGuard PSIRT Advisoriesofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation.
Fortinet
Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
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-2026-59837NVD CVE.org MITRE

Official resources

FortiGate / FortiOS documentation & release notes (target: 7.4 / 7.2 / 1.8)
Release notes
This advisory names 7.4 / 7.2 / 1.8 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.
FortiProxy documentation & upgrade guides
Official documentation
This advisory names 7.4 / 7.2 / 1.8 as the first fixed releases — official upgrade documentation for FortiProxy.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Stack Buffer Overflow in Log Report

FG-IR-26-148 Published Jul 14, 2026Updated by vendor Jul 14, 2026

Affected products & platforms

FortinetFortiGateFirewallFortiOSFortiProxy

Summary

Affected versions

FortiOS 7.4: 7.4.0 through 7.4.1
FortiOS 7.2: 7.2 all versions
FortiPAM 1.8: 1.8.0 through 1.8.2
FortiPAM 1.7: 1.7 all versions
FortiPAM 1.6: 1.6 all versions
FortiPAM 1.5: 1.5 all versions
FortiPAM 1.4: 1.4 all versions
FortiPAM 1.3: 1.3 all versions
FortiPAM 1.2: 1.2 all versions
FortiPAM 1.1: 1.1 all versions
FortiPAM 1.0: 1.0 all versions
FortiProxy 7.4: 7.4.0 through 7.4.13
FortiProxy 7.2: 7.2 all versions

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

FortiOS 7.4: 7.4.2
FortiOS 7.2: migrate to a fixed release
FortiPAM 1.8: 1.8.3
FortiPAM 1.7: migrate to a fixed release
FortiPAM 1.6: migrate to a fixed release
FortiPAM 1.5: migrate to a fixed release
FortiPAM 1.4: migrate to a fixed release
FortiPAM 1.3: migrate to a fixed release
FortiPAM 1.2: migrate to a fixed release
FortiPAM 1.1: migrate to a fixed release
FortiPAM 1.0: migrate to a fixed release
FortiProxy 7.4: 7.4.14
FortiProxy 7.2: migrate to a fixed release

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Upgrade per the Affected/Solution table: FortiOS 7.4: 7.4.2; FortiOS 7.2: migrate to a fixed release; FortiPAM 1.8: 1.8.3; FortiPAM 1.7: migrate to a fixed release; FortiPAM 1.6: migrate to a fixed release; ….

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Source evidence

What VulniPulse actually used to build this record — and why.

FortiGuard PSIRT Advisoriesofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation.
Fortinet
Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
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-2026-59837NVD CVE.org MITRE

Official resources

FortiGate / FortiOS documentation & release notes (target: 7.4 / 7.2 / 1.8)
Release notes
This advisory names 7.4 / 7.2 / 1.8 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.
FortiProxy documentation & upgrade guides
Official documentation
This advisory names 7.4 / 7.2 / 1.8 as the first fixed releases — official upgrade documentation for FortiProxy.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.