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CVE-2018-5092

Estado: ModificadaCrítica (9.8)—

Puede ocurrir una vulnerabilidad de uso de memoria previamente liberada cuando el hilo para un Web Worker se libera de la memoria prematuramente en vez de la memoria en el hilo principal cuando se cancelan las operaciones fetch. Esta vulnerabilidad afecta a las versiones anteriores a la 58 de Firefox.

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 (2)

Canonical — Ubuntu LinuxMozilla — Firefox

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-5092",
  "cveTags": [],
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "affected": [
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      "affectedData": [
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          "vendor": "Mozilla",
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  "published": "2018-06-11T21:29:12.327",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-416"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of from memory in the main thread while cancelling fetch operations. This vulnerability affects Firefox < 58."
    },
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      "lang": "es",
      "value": "Puede ocurrir una vulnerabilidad de uso de memoria previamente liberada cuando el hilo para un Web Worker se libera de la memoria prematuramente en vez de la memoria en el hilo principal cuando se cancelan las operaciones fetch. Esta vulnerabilidad afecta a las versiones anteriores a la 58 de Firefox."
    }
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  "lastModified": "2026-06-17T01:59:36.180",
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