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CVE-2018-1158

Estado: ModificadaMedia (6.5)—

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a stack exhaustion vulnerability. An authenticated remote attacker can crash the HTTP server via recursive parsing of JSON.

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).

Tecnologías afectadas (1)

Mikrotik — Routeros

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-1158",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-23T19:29:00.563",
  "references": [
    {
      "url": "http://seclists.org/fulldisclosure/2019/Jul/20",
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://mikrotik.com/download/changelogs",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://mikrotik.com/download/changelogs/bugfix-release-tree",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2018-21",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2019/Jul/20",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://mikrotik.com/download/changelogs",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://mikrotik.com/download/changelogs/bugfix-release-tree",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2018-21",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a stack exhaustion vulnerability. An authenticated remote attacker can crash the HTTP server via recursive parsing of JSON."
    },
    {
      "lang": "es",
      "value": "Mikrotik RouterOS en versiones anteriores a la 6.42.7 y 6.40.9 es vulnerable a una vulnerabilidad de agotamiento de pila. Un atacante remoto autenticado puede provocar el cierre inesperado del servidor HTTP mediante el análisis recursivo de JSON."
    }
  ],
  "lastModified": "2026-06-17T01:50:36.450",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "69DD338B-DFE1-48D5-AD40-A7941FBC27ED",
              "versionEndExcluding": "6.40.9"
            },
            {
              "criteria": "cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EAFC594A-61C6-4D6B-AFF2-6F5CD8D20993",
              "versionEndExcluding": "6.42.7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com"
}