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CVE-2026-8398

Estado: AnalizadaCrítica (9.3)⚠ Explotación activa

A supply chain attack compromised the official installation packages of DAEMON Tools Lite (Windows versions 12.5.0.2421 through 12.5.0.2434), distributed from the legitimate website daemon-tools.cc between approximately April 8, 2026, and May 5, 2026. Attackers gained unauthorized access to the vendor's (AVB Disc Soft) build or distribution infrastructure and trojanized three binaries: DTHelper.exe, DiscSoftBusServiceLite.exe, and DTShellHlp.exe. These files were digitally signed with the legitimate AVB Disc Soft code-signing certificate, allowing the malicious installers to appear trustworthy and bypass signature-based detection.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

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

Ataque de cadena de suministro (T1195) con binarios trojanos firmados digitalmente en paquetes oficiales. Instalador malicioso permite ejecución de código y persistencia mediante binarios comprometidos (DTHelper.exe, DiscSoftBusServiceLite.exe, DTShellHlp.exe).

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

Application Developer GuidanceVulnerability ScanningUser Account ManagementLimit Software InstallationExecution PreventionBoot Integrity

Tecnologías afectadas (1)

Disc-soft — Daemon Tools

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-8398",
  "cveTags": [],
  "metrics": {
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          "options": [
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      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "vulnerability@kaspersky.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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          "product": "DAEMON Tools Lite",
          "versions": [
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              "version": "12.5.0.2421",
              "lessThan": "2.6.0.*",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
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  ],
  "published": "2026-05-15T09:16:17.653",
  "references": [
    {
      "url": "https://blog.daemon-tools.cc/post/security-incident",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vulnerability@kaspersky.com"
    },
    {
      "url": "https://securelist.com/tr/daemon-tools-backdoor/119654/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "vulnerability@kaspersky.com"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8398",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "vulnerability@kaspersky.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-506"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A supply chain attack compromised the official installation packages of DAEMON Tools Lite (Windows versions 12.5.0.2421 through 12.5.0.2434), distributed from the legitimate website daemon-tools.cc between approximately April 8, 2026, and May 5, 2026. Attackers gained unauthorized access to the vendor's (AVB Disc Soft) build or distribution infrastructure and trojanized three binaries: DTHelper.exe, DiscSoftBusServiceLite.exe, and DTShellHlp.exe. These files were digitally signed with the legitimate AVB Disc Soft code-signing certificate, allowing the malicious installers to appear trustworthy and bypass signature-based detection."
    }
  ],
  "lastModified": "2026-06-17T11:03:53.007",
  "cisaActionDue": "2026-05-30",
  "cisaExploitAdd": "2026-05-27",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            {
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          "operator": "OR"
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      "operator": "AND"
    }
  ],
  "sourceIdentifier": "vulnerability@kaspersky.com",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Daemon Tools Lite Embedded Malicious Code Vulnerability"
}