CVE-2026-20163

Estado: AnalizadaAlta (7.2)—

In Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10, and Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124, a user who holds a role that contains the high-privilege capability `edit_cmd` could execute arbitrary shell commands using the `unarchive_cmd` parameter for the `/splunkd/__upload/indexing/preview` REST endpoint.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.46%
Percentil entre todas las CVEs puntuadas: 38
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %

Acceso remoto con privilegios elevados (PR:H) en servicio REST de Splunk. Ejecución de comandos shell arbitrarios vía parámetro `unarchive_cmd` por usuario autenticado con capacidad `edit_cmd`.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

Tecnologías afectadas (2)

Splunk — Splunk Splunk — Splunk Cloud Platform

CWE

CWE-77

Referencias

https://advisory.splunk.com/advisories/SVD-2026-0302

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-20163",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20163",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-12T03:55:43.201014Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Splunk",
          "product": "Splunk Enterprise",
          "versions": [
            {
              "status": "affected",
              "version": "10.0",
              "lessThan": "10.0.4",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.4",
              "lessThan": "9.4.9",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.3",
              "lessThan": "9.3.10",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Splunk",
          "product": "Splunk Cloud Platform",
          "versions": [
            {
              "status": "affected",
              "version": "10.2.2510",
              "lessThan": "10.2.2510.5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.0.2503",
              "lessThan": "10.0.2503.12",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "10.1.2507",
              "lessThan": "10.1.2507.16",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "9.3.2411",
              "lessThan": "9.3.2411.124",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-11T17:16:56.607",
  "references": [
    {
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0302",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10, and Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124, a user who holds a role that contains the high-privilege capability `edit_cmd` could execute arbitrary shell commands using the `unarchive_cmd` parameter for the `/splunkd/__upload/indexing/preview` REST endpoint."
    },
    {
      "lang": "es",
      "value": "En las versiones de Splunk Enterprise anteriores a 10.2.0, 10.0.4, 9.4.9 y 9.3.10, y las versiones de Splunk Cloud Platform anteriores a 10.2.2510.5, 10.0.2503.12, 10.1.2507.16 y 9.3.2411.124, un usuario que posee un rol que contiene la capacidad de alto privilegio 'edit_cmd' podría ejecutar comandos de shell arbitrarios utilizando el parámetro 'unarchive_cmd' para el endpoint REST /splunkd/__upload/indexing/preview."
    }
  ],
  "lastModified": "2026-06-17T10:17:14.720",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BFBDF80A-51CC-470E-977C-96ABBF89162D",
              "versionEndExcluding": "9.3.10",
              "versionStartIncluding": "9.3.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ACAC2D08-9ED6-4E58-A999-0EE2025C69FC",
              "versionEndExcluding": "9.4.9",
              "versionStartIncluding": "9.4.0"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1E7483F3-FE84-42B9-A2E7-6E89B110BA31",
              "versionEndExcluding": "10.0.4",
              "versionStartIncluding": "10.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5198A912-AABA-40D1-8DE1-958E6584501B",
              "versionEndExcluding": "9.3.2411.124",
              "versionStartIncluding": "9.3.2411"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FA248FBD-6AFF-492C-93A8-17EAA7C07FC1",
              "versionEndExcluding": "10.0.2503.12",
              "versionStartIncluding": "10.0.2503"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "17E11C59-CC22-48AA-A969-717D4D527019",
              "versionEndExcluding": "10.1.2507.16",
              "versionStartIncluding": "10.1.2507"
            },
            {
              "criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6609708F-A13F-4E4E-9883-C11659BD6C3C",
              "versionEndExcluding": "10.2.2510.5",
              "versionStartIncluding": "10.2.2510"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}