CVE-2026-39808 (GCVE-0-2026-39808)

Vulnerability from cvelistv5 – Published: 2026-04-14 15:38 – Updated: 2026-04-15 03:58
VLAI?
Summary
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CWE
  • CWE-78 - Execute unauthorized code or commands
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiSandbox Affected: 4.4.0 , ≤ 4.4.8 (semver)
    cpe:2.3:a:fortinet:fortisandbox:4.4.8:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.7:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.6:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.5:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.4:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandbox:4.4.0:*:*:*:*:*:*:*
 Create a notification for this product.
    Fortinet FortiSandbox PaaS Affected: 23.4.4374
Affected: 23.4.4350
Affected: 23.3.4329
Affected: 23.1.4245
Affected: 22.2.4151
Affected: 22.2.4134
Affected: 22.1.4113
Affected: 21.4.4072
Affected: 21.3.4055
    cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4374:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4350:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:23.3.4329:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:23.1.4245:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4151:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4134:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:22.1.4113:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:21.4.4072:*:*:*:*:*:*:*
    cpe:2.3:a:fortinet:fortisandboxpaas:21.3.4055:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-39808",
                "options": [
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                  },
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                    "Technical Impact": "total"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-14T00:00:00+00:00",
                "version": "2.0.3"
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            {
              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "22.2.4151"
            },
            {
              "status": "affected",
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            },
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
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      "problemTypes": [
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      "references": [
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          "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-100"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to FortiSandbox version 4.4.9 or above\nUpgrade to FortiSandbox PaaS version 5.0.2 or above"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2026-39808",
    "datePublished": "2026-04-14T15:38:02.089Z",
    "dateReserved": "2026-04-07T15:24:03.838Z",
    "dateUpdated": "2026-04-15T03:58:23.870Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-39808",
      "date": "2026-04-15",
      "epss": "0.00292",
      "percentile": "0.52645"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-39808\",\"sourceIdentifier\":\"psirt@fortinet.com\",\"published\":\"2026-04-14T16:16:44.860\",\"lastModified\":\"2026-04-14T16:16:44.860\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A improper neutralization of special elements used in an os command (\u0027os command injection\u0027) vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via \u003cinsert attack vector here\u003e\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@fortinet.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"psirt@fortinet.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://fortiguard.fortinet.com/psirt/FG-IR-26-100\",\"source\":\"psirt@fortinet.com\"}]}}",
    "vulnrichment": {
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}


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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.