« Volver al listado

CVE-2026-21708

Estado: AnalizadaCrítica (9.9)—

A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

CVSS

Probabilidad de explotación (EPSS)

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.

AV:N/PR:L indica servicio remoto con privilegios mínimos (T1210). RCE como postgres permite ejecución de comandos (T1059) y acceso a datos de backup (T1005); CWE-89 (SQL injection) sugiere manipulación de datos.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentRestrict File and Directory Permissions

Tecnologías afectadas (1)

Veeam — Veeam Backup & Replication

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-21708",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-21708",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-13T03:55:48.547246Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "Veeam",
          "product": "Backup and Replication",
          "versions": [
            {
              "status": "affected",
              "version": "12",
              "lessThan": "12.3.2",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "13",
              "lessThan": "13.0.1",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-12T17:16:36.683",
  "references": [
    {
      "url": "https://www.veeam.com/kb4830",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://www.veeam.com/kb4831",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad que permite a un Visor de Copias de Seguridad realizar ejecución remota de código (RCE) como el usuario postgres."
    }
  ],
  "lastModified": "2026-06-17T10:18:56.887",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:veeam:veeam_backup_\\&_replication:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BCC69F8A-BA60-4E58-8D75-50A25A7E4DD2",
              "versionEndExcluding": "12.3.2.4465.",
              "versionStartIncluding": "12.0.0.1402"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com"
}