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CVE-2015-4640

Status: ModifiedLow (2.9)—

The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Swiftkey — Swiftkey SDK

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2015-4640",
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          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
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  "published": "2015-06-19T14:59:01.347",
  "references": [
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      "description": [
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          "lang": "en",
          "value": "CWE-254"
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      "value": "The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response.  NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution."
    },
    {
      "lang": "es",
      "value": "La implementación de la actualización del paquete de lenguas SwiftKey en los dispositivos Samsung Galaxy S4, S4 Mini, S5, y S6 depende de una conexión HTTP al servidor skslm.swiftkey.net, lo que permite a atacantes man-in-the-middle escribir en ficheros del paquete de lenguas mediante la modificación de una respuesta HTTP. NOTA: La explotación de CVE-2015-4640 puede combinarse con la explotación de CVE-2015-4641 para la ejecución de código man-in-the-middle."
    }
  ],
  "lastModified": "2026-06-17T00:27:38.923",
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