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CVE-2026-22259

Estado: AnalizadaAlta (7.5)—

Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).

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.

Tráfico DNP3 especialmente crafted en red sin autenticación (AV:N/PR:N) causa consumo masivo de memoria en Suricata, resultando en DoS por agotamiento de recursos (CWE-400/770).

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Oisf — Suricata

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-22259",
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          "id": "CVE-2026-22259",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-01-27T18:16:20.937010Z"
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          "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"
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      "value": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default)."
    },
    {
      "lang": "es",
      "value": "Suricata es un motor IDS, IPS y NSM de red. Antes de las versiones 8.0.3 y 7.0.14, el tráfico especialmente diseñado puede hacer que Suricata consuma grandes cantidades de memoria mientras analiza el tráfico DNP3. Esto puede provocar que el proceso se ralentice y se quede sin memoria, lo que podría llevar a que sea terminado por el OOM killer. Las versiones 8.0.3 o 7.0.14 contienen un parche. Como solución alternativa, deshabilite el analizador DNP3 en el suricata yaml (deshabilitado por defecto)."
    }
  ],
  "lastModified": "2026-06-17T10:19:39.123",
  "configurations": [
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