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CVE-2021-33448

Estado: ModificadaMedia (5.5)—

An issue was discovered in mjs(mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is stack buffer overflow at 0x7fffe9049390.

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)

Cesanta — MJS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-33448",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-07-26T13:15:09.043",
  "references": [
    {
      "url": "https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/cesanta/mjs/issues/170",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/cesanta/mjs/issues/170",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in mjs(mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is stack buffer overflow at 0x7fffe9049390."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en mjs(mJS: Restricted JavaScript engine), ES6 (versión 6 de JavaScript). Se presenta un desbordamiento del buffer de pila en 0x7fffe9049390."
    }
  ],
  "lastModified": "2026-06-17T03:54:34.190",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cesanta:mjs:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "13B1A3EF-A920-4FB4-BD11-F97092B362F7",
              "versionEndExcluding": "2.20.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}