CVE-2026-59839: Path traversal in CLI command allows deletion of root file system

Published Jul 14, 2026
·
Updated

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiPAM 1.8.0, FortiPAM 1.7.0 through 1.7.2, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

Other sources

An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in FortiOS, FortiPAM, FortiProxy and FortiSwitch Manager may allow a privileged authenticated attacker with physical access to the device to delete the file system via crafted CLI commands.

— FortiGuard

Affected Software

24 affected componentsFixes available
Fortinet FortiOS>=7.6.0<=7.6.6
Fortinet FortiOS>=7.4.0<=7.4.9
Fortinet FortiOS>=7.2
Fortinet FortiOS>=7.0
Fortinet FortiOS>=6.4
Fortinet FortiPAM=.
Fortinet FortiPAM>=1.7.0<=1.7.2
Fortinet FortiPAM>=1.6
Fortinet FortiPAM>=1.5
Fortinet FortiPAM>=1.4
Fortinet FortiPAM>=1.3
Fortinet FortiPAM>=1.2
Fortinet FortiPAM>=1.1
Fortinet FortiPAM>=1.0
Fortinet FortiProxy>=7.6.0<=7.6.5
Fortinet FortiProxy>=7.4<=7.4.13
Fortinet FortiProxy>=7.2
Fortinet FortiProxy>=7.0
Fortinet FortiProxy>=7.0.0<7.4.14
Fortinet FortiProxy>=7.6.0<7.6.6
Fortinet FortiOS>=6.4.0<7.4.10
Fortinet FortiOS>=7.6.0<7.6.7
Fortinet FortiPAM>=1.0.0<1.7.3
Fortinet FortiPAM=1.8.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 7.4.10
  2. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 7.6.7
  3. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 8.0.0
  4. Upgrade

    Upgrade FortiPAM to a version that resolves this vulnerability.

    Fixed in 1.8.1
  5. Upgrade

    Upgrade FortiPAM to a version that resolves this vulnerability.

    Fixed in 1.9.0
  6. Upgrade

    Upgrade FortiProxy to a version that resolves this vulnerability.

    Fixed in 7.6.6
  7. Upgrade

    Upgrade FortiSwitchManager to a version that resolves this vulnerability.

    Fixed in 7.2.8

Event History

Jul 14, 2026
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·03:19 PM
Data Sourced
via MITRE·03:19 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-59839?

CVE-2026-59839 has a medium severity rating of 5.5.

2

How do I fix CVE-2026-59839?

To fix CVE-2026-59839, upgrade to Fortinet FortiOS or FortiPAM versions that are not affected by the vulnerability.

3

What systems are impacted by CVE-2026-59839?

CVE-2026-59839 affects various versions of Fortinet FortiOS and FortiPAM, specifically versions 7.0 through 7.6.6 and FortiPAM 1.7.0 through 1.8.0.

4

What type of vulnerability is CVE-2026-59839?

CVE-2026-59839 is classified as a path traversal vulnerability.

5

What potential risks are associated with CVE-2026-59839?

CVE-2026-59839 could allow an attacker to delete critical files from the root file system.

Company

Resources

Contact

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