« Volver al listado

CVE-2026-61551

Estado: Pendiente de análisisAlta (8.6)—

Icinga 2 is an open source monitoring system. Prior to 2.14.9, 2.15.4, and 2.16.2, parsing deeply nested JSON can exhaust the call stack because nesting depth is not bounded. The affected JSON parsing paths are reachable by unauthenticated network clients through the Icinga 2 service on TCP port 5665, allowing a remote attacker to crash the process, while possible code execution has not been demonstrated. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2.

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.

JSON anidado profundo causa desbordamiento de pila en servicio remoto sin autenticación (TCP 5665), provocando DoS por agotamiento de recursos y caída del proceso Icinga 2.

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)

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

Icinga — Icinga 2AI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-61551",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61551",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-24T21:01:25.297652Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "Icinga",
          "product": "icinga2",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.14.9"
            },
            {
              "status": "affected",
              "version": ">= 2.15.0, < 2.15.4"
            },
            {
              "status": "affected",
              "version": ">= 2.16.0, < 2.16.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-18T18:17:08.393",
  "references": [
    {
      "url": "https://github.com/Icinga/icinga2/commit/391504eaa9ed9aee81f84008c57ec821974b74ee",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/commit/3d9166ff52ff1a64a286c39af57957d63442c137",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/commit/4964d2444ca5c4fae9036054554e1c6e0025fb89",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/commit/ed163a8aa9d296820dd2ad14c47bf3f6a3fcce7d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/pull/10908",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/releases/tag/v2.14.9",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/releases/tag/v2.15.4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/releases/tag/v2.16.2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Icinga/icinga2/security/advisories/GHSA-wh38-wg57-5w7g",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://icinga.com/blog/icinga2-security-release-v2-16-2",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Icinga 2 is an open source monitoring system. Prior to 2.14.9, 2.15.4, and 2.16.2, parsing deeply nested JSON can exhaust the call stack because nesting depth is not bounded. The affected JSON parsing paths are reachable by unauthenticated network clients through the Icinga 2 service on TCP port 5665, allowing a remote attacker to crash the process, while possible code execution has not been demonstrated. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2."
    }
  ],
  "lastModified": "2026-09-24T21:17:43.237",
  "sourceIdentifier": "security-advisories@github.com"
}