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CVE-2026-35406

Estado: AnalizadaAlta (7.5)—

Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.

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.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-35406",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-35406",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-08T16:09:52.961124Z"
        }
      }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:L/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"
        },
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        "exploitabilityScore": 2.5
      },
      {
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        "cvssData": {
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          "attackComplexity": "LOW",
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  "published": "2026-04-07T22:16:23.277",
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    {
      "url": "https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1",
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      "url": "https://github.com/containers/aardvark-dns/releases/tag/v1.17.1",
      "tags": [
        "Release Notes"
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    {
      "url": "https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j",
      "tags": [
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        "Vendor Advisory"
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      "source": "security-advisories@github.com"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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  "descriptions": [
    {
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      "value": "Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1."
    },
    {
      "lang": "es",
      "value": "Aardvark-dns es un servidor DNS autoritativo para registros de contenedor A/AAAA. Desde 1.16.0 hasta 1.17.0, una consulta DNS TCP truncada seguida de un reinicio de conexión provoca que aardvark-dns entre en un bucle de error infinito irrecuperable al 100% de CPU. Esta vulnerabilidad está corregida en 1.17.1."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "1.17.1",
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          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}