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CVE-2026-40061

Full vulnerability record from the local CVENow database.

Description

When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an authenticated attacker with the Resource Administrator or Administrator role to execute arbitrary system commands with higher privileges. In Appliance mode deployments, a successful exploit can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity
HIGH
CVSS score
8.5 (v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-13 16:16:42.283000
Last modified
2026-10-26 17:10:03.270000
View original CVE JSON
{
  "id": "CVE-2026-40061",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-13T16:16:42.283",
  "lastModified": "2026-10-26T17:10:03.270",
  "vulnStatus": "Analyzed",
  "cveTags": [],
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      "value": "When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an authenticated attacker with the Resource Administrator or Administrator role to execute arbitrary system commands with higher privileges. In Appliance mode deployments, a successful exploit can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
    },
    {
      "lang": "es",
      "value": "Cuando se aprovisiona BIG-IP DNS, existe una vulnerabilidad en un comando no revelado de iControl REST y BIG-IP TMOS Shell (tmsh) que puede permitir a un atacante autenticado con el rol de Administrador de Recursos o Administrador ejecutar comandos de sistema arbitrarios con privilegios más altos. En implementaciones en modo Appliance, un exploit exitoso puede permitir al atacante cruzar un límite de seguridad. Nota: Las versiones de software que han alcanzado el Fin del Soporte Técnico (EoTS) no se evalúan."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "F5",
          "product": "BIG-IP",
          "defaultStatus": "unknown",
          "modules": [
            "All Modules"
          ],
          "versions": [
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              "lessThan": "*",
              "versionType": "custom",
              "status": "unaffected"
            },
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            },
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  "metrics": {
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
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    ],
    "cvssMetricV31": [
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    "ssvcV203": [
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  "weaknesses": [
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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  "references": [
    {
      "url": "https://my.f5.com/manage/s/article/K000160788",
      "source": "[email protected]",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
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}