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CVE-2026-79896

Estado: Pendiente de análisisAlta (7.5)—

Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption.

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.

Vector AV:N/PR:N/UI:N con CWE-125 (out-of-bounds read) en parser TLS expuesto indica explotación remota de aplicación. El DoS sostenible mediante solicitudes repetidas de ClientHello malformado causa interrupciones de servicio reiteradas.

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

Tecnologías afectadas (1)

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

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-79896",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-79896",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-01T16:02:42.850473Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "df4dee71-de3a-4139-9588-11b62fe6c0ff",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "df4dee71-de3a-4139-9588-11b62fe6c0ff",
      "affectedData": [
        {
          "vendor": "Fortra",
          "modules": [
            "boks_portmux"
          ],
          "product": "BoKS Manager",
          "versions": [
            {
              "status": "affected",
              "version": "8.1.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "8.1.0.23"
            },
            {
              "status": "affected",
              "version": "9.0.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "9.0.0.6"
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  ],
  "published": "2026-10-01T16:17:59.940",
  "references": [
    {
      "url": "https://www.fortra.com/security/advisories/product-security/fi-2026-016",
      "source": "df4dee71-de3a-4139-9588-11b62fe6c0ff"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption."
    }
  ],
  "lastModified": "2026-10-01T20:34:26.287",
  "sourceIdentifier": "df4dee71-de3a-4139-9588-11b62fe6c0ff"
}