CVE-2015-4484

Estado: ModificadaMedia (5)—
The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash) by leveraging the use of shared memory and accessing (1) an Atomics object or (2) a SharedArrayBuffer object.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Puntuación base: 5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 4.27%
Percentil entre todas las CVEs puntuadas: 91
Fecha de la puntuación: 7/10/2026
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 (4)

Canonical — Ubuntu Linux Mozilla — Firefox Opensuse — Opensuse Oracle — Solaris
CWE

CWE-119
Referencias

JSON original (NVD)

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  "id": "CVE-2015-4484",
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
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  "published": "2015-08-16T01:59:12.050",
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      "value": "The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash) by leveraging the use of shared memory and accessing (1) an Atomics object or (2) a SharedArrayBuffer object."
    },
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      "value": "Vulnerabilidad en la función js::jit::AssemblerX86Shared::lock_addl en la implementación de JavaScript en Mozilla Firefox en versiones anteriores a 40.0 y Firefox ESR 38.x en versiones anteriores a 38.2, permite a atacantes remotos provocar una denegación de servicio (caída de aplicación) mediante del aprovechamiento del uso memoria compartida y el acceso (1) a un objeto Atomics o (2) a un objeto SharedArrayBuffer."
    }
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  "lastModified": "2026-06-17T00:27:22.343",
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