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CVE-2022-40138

Estado: ModificadaCrítica (9.8)—

An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

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)

Facebook — Hermes

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-40138",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve-assign@fb.com",
      "affectedData": [
        {
          "vendor": "Facebook",
          "product": "Hermes",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "commit prior to 6aa825e480d48127b480b08d13adf70033237097",
              "versionType": "custom"
            }
          ]
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  ],
  "published": "2022-10-11T02:15:08.857",
  "references": [
    {
      "url": "https://github.com/facebook/hermes/commit/6aa825e480d48127b480b08d13adf70033237097",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://www.facebook.com/security/advisories/CVE-2022-40138",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://github.com/facebook/hermes/commit/6aa825e480d48127b480b08d13adf70033237097",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.facebook.com/security/advisories/CVE-2022-40138",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cve-assign@fb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-681"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-681"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected."
    },
    {
      "lang": "es",
      "value": "Un error de conversión de enteros en la generación de bytecode de Hermes, anterior al commit 6aa825e480d48127b480b08d13adf70033237097, podría haber sido usado para llevar a cabo operaciones Fuera de Límites y posteriormente ejecutar código arbitrario. Tenga en cuenta que esto sólo es explotable en los casos en que Hermes es usado para ejecutar JavaScript no confiable. Por lo tanto, la mayoría de las aplicaciones React Native no están afectadas"
    }
  ],
  "lastModified": "2026-06-17T05:01:00.983",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "vulnerable": true,
              "matchCriteriaId": "451DE6BE-B59A-48A8-BB8D-462144D9BBBB",
              "versionEndExcluding": "2022-09-27"
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          "operator": "OR"
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  ],
  "sourceIdentifier": "cve-assign@fb.com"
}