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CVE-2026-32999

Estado: AplazadaCrítica (9)—

Insufficient character filtering in backup agent signing module on Comet Backup server allows authenticated tenant administrator to execute an arbitrary code on behalf of a privileged user on the affected server and connected devices.

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/AC:H sin UI:R sugiere T1190. CWE-94 (código dinámico sin filtrado) + 'execute arbitrary code' indica T1059. Acceso autenticado a módulo privado permite escalar a admin/root (T1068).

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 ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Comet — BackupAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-32999",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-32999",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-28T13:09:12.226918Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "support@hackerone.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "WebPros",
          "product": "Comet Backup",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.4.3",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.5.0",
              "versionType": "semver"
            }
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          "defaultStatus": "unaffected"
        }
      ]
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  ],
  "published": "2026-05-28T05:16:36.107",
  "references": [
    {
      "url": "https://support.cometbackup.com/hc/en-us/articles/40655100268439--CVE-2026-32999-RCE-on-Comet-Server-via-branding-configuration",
      "source": "support@hackerone.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
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      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
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    {
      "lang": "en",
      "value": "Insufficient character filtering in backup agent signing module on Comet Backup server allows authenticated tenant administrator to execute an arbitrary code on behalf of a privileged user on the affected server and connected devices."
    }
  ],
  "lastModified": "2026-06-17T10:36:43.987",
  "sourceIdentifier": "support@hackerone.com"
}