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CVE-2018-21058

Estado: ModificadaCrítica (9.8)—

Se detectó un problema en dispositivos móviles Samsung con versiones de software N(7.0), O(8.0) (exynos7420 o Exynos 8890/8996). Ataques de la memoria Caché pueden ocurrir contra la implementación Keymaster AES-GCM porque son usadas T-Tables; la Cryptography Extension (CE) no es usada. El ID de Samsung es SVE-2018-12761 (Septiembre de 2018).

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)

Google — Android

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-21058",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "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"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "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"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  "published": "2020-04-08T18:15:13.807",
  "references": [
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb",
      "tags": [
        "Vendor Advisory"
      ],
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    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb",
      "tags": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018)."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en dispositivos móviles Samsung con versiones de software N(7.0), O(8.0) (exynos7420 o Exynos 8890/8996). Ataques de la memoria Caché pueden ocurrir contra la implementación Keymaster AES-GCM porque son usadas T-Tables; la Cryptography Extension (CE) no es usada. El ID de Samsung es SVE-2018-12761 (Septiembre de 2018)."
    }
  ],
  "lastModified": "2026-06-17T01:54:03.157",
  "configurations": [
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}