PSIRT Path traversal in CLI command allows deletion of root file system

{
  "id": "a748cd52861d85b7d368e11ca3e3b2623f7b87aaf9068a6509f7068f1b68affc",
  "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-151",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "PSIRT Path traversal in CLI command allows deletion of root file system",
    "summary": "A path traversal vulnerability may allow a privileged, authenticated attacker with physical access to delete the file system through crafted CLI commands. The announcement lists affected and fixed releases for FortiOS, FortiPAM, and FortiProxy, and provides a virtual patch.",
    "evidence": "may allow a privileged authenticated attacker with physical access to the device to delete the file system via crafted CLI commands.",
    "products": [
      {
        "name": {
          "value": "FortiOS",
          "evidence": "FortiOS 7.6"
        },
        "prerequisites": [
          {
            "value": "privileged authenticated attacker with physical access to the device",
            "evidence": "a privileged authenticated attacker with physical access to the device"
          }
        ],
        "fixed_versions": [
          {
            "value": "upcoming 7.6.7 or above",
            "evidence": "Upgrade to upcoming 7.6.7 or above"
          },
          {
            "value": "7.4.10 or above",
            "evidence": "Upgrade to 7.4.10 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.6.0 through 7.6.6",
            "evidence": "7.6.0 through 7.6.6"
          },
          {
            "value": "7.4.0 through 7.4.9",
            "evidence": "7.4.0 through 7.4.9"
          },
          {
            "value": "7.2 all versions",
            "evidence": "7.2 all versions"
          },
          {
            "value": "7.0 all versions",
            "evidence": "7.0 all versions"
          },
          {
            "value": "6.4 all versions",
            "evidence": "6.4 all versions"
          }
        ]
      },
      {
        "name": {
          "value": "FortiPAM",
          "evidence": "FortiPAM 1.8"
        },
        "prerequisites": [
          {
            "value": "privileged authenticated attacker with physical access to the device",
            "evidence": "a privileged authenticated attacker with physical access to the device"
          }
        ],
        "fixed_versions": [
          {
            "value": "1.8.1 or above",
            "evidence": "Upgrade to 1.8.1 or above"
          },
          {
            "value": "upcoming 1.7.3 or above",
            "evidence": "Upgrade to upcoming 1.7.3 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "1.8.0",
            "evidence": "1.8.0"
          },
          {
            "value": "1.7.0 through 1.7.2",
            "evidence": "1.7.0 through 1.7.2"
          },
          {
            "value": "1.6 all versions",
            "evidence": "1.6 all versions"
          },
          {
            "value": "1.5 all versions",
            "evidence": "1.5 all versions"
          },
          {
            "value": "1.4 all versions",
            "evidence": "1.4 all versions"
          },
          {
            "value": "1.3 all versions",
            "evidence": "1.3 all versions"
          },
          {
            "value": "1.2 all versions",
            "evidence": "1.2 all versions"
          },
          {
            "value": "1.1 all versions",
            "evidence": "1.1 all versions"
          },
          {
            "value": "1.0 all versions",
            "evidence": "1.0 all versions"
          }
        ]
      },
      {
        "name": {
          "value": "FortiProxy",
          "evidence": "FortiProxy 7.6"
        },
        "prerequisites": [
          {
            "value": "privileged authenticated attacker with physical access to the device",
            "evidence": "a privileged authenticated attacker with physical access to the device"
          }
        ],
        "fixed_versions": [
          {
            "value": "7.6.6 or above",
            "evidence": "Upgrade to 7.6.6 or above"
          },
          {
            "value": "7.4.14 or above",
            "evidence": "Upgrade to 7.4.14 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.6.0 through 7.6.5",
            "evidence": "7.6.0 through 7.6.5"
          },
          {
            "value": "7.4 through 7.4.13",
            "evidence": "7.4 through 7.4.13"
          },
          {
            "value": "7.2 all versions",
            "evidence": "7.2 all versions"
          },
          {
            "value": "7.0 all versions",
            "evidence": "7.0 all versions"
          }
        ]
      },
      {
        "name": {
          "value": "FortiSwitch Manager",
          "evidence": "FortiOS, FortiPAM, FortiProxy and FortiSwitch Manager"
        },
        "prerequisites": [
          {
            "value": "privileged authenticated attacker with physical access to the device",
            "evidence": "a privileged authenticated attacker with physical access to the device"
          }
        ],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-59839",
        "evidence": "CVE ID CVE-2026-59839"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "Severity Medium"
  },
  "source_id": "official-fortinet-psirt",
  "document_id": 23587,
  "published_at": "2026-07-14T07:00:00+00:00"
}