nvd-json-data-feeds/CVE-2021/CVE-2021-239xx/CVE-2021-23954.json

{
  "id": "CVE-2021-23954",
  "sourceIdentifier": "security@mozilla.org",
  "published": "2021-02-26T03:15:13.510",
  "lastModified": "2021-03-03T20:58:49.663",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7."
    },
    {
      "lang": "es",
      "value": "Usando los nuevos operadores de asignaci\u00f3n l\u00f3gica en una declaraci\u00f3n de cambio de JavaScript podr\u00eda haber causado una confusi\u00f3n de tipos, conllevando a una corrupci\u00f3n de la memoria y un bloqueo potencialmente explotable.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 85, Thunderbird versiones anteriores a 78,7 y Firefox ESR versiones anteriores a 78,7"
    }
  ],
  "metrics": {
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        "type": "Primary",
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 2.8,
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          "confidentialityImpact": "PARTIAL",
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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    {
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      "type": "Primary",
      "description": [
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          "value": "CWE-843"
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  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1684020",
      "source": "security@mozilla.org",
      "tags": [
        "Issue Tracking",
        "Permissions Required",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-03/",
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      "url": "https://www.mozilla.org/security/advisories/mfsa2021-04/",
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}