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CVE-2021-25500

Estado: ModificadaMedia (4.4)—

Una falta de comprobación de entradas en HDCP LDFW versiones anteriores a 1 de SMR Nov-2021, permite a atacantes sobrescribir TZASC, lo que permite comprometer el TEE

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-2021-25500",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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        "userInteractionRequired": false
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          "integrityImpact": "HIGH",
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          "attackComplexity": "HIGH",
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  "affected": [
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      "affectedData": [
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          "vendor": "Samsung Mobile",
          "product": "Samsung Mobile Devices",
          "versions": [
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              "status": "affected",
              "version": "Select Q(10.0), R(11.0) devices with Exynos 980, 9820, 9830, 2100 chipset",
              "lessThan": "SMR Nov-2021 Release 1",
              "versionType": "custom"
            }
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  "published": "2021-11-05T03:15:07.323",
  "references": [
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=11",
      "tags": [
        "Vendor Advisory"
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      "source": "mobile.security@samsung.com"
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    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=11",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
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      "description": [
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          "value": "CWE-20"
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    {
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-787"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise."
    },
    {
      "lang": "es",
      "value": "Una falta de comprobación de entradas en HDCP LDFW versiones anteriores a 1 de SMR Nov-2021, permite a atacantes sobrescribir TZASC, lo que permite comprometer el TEE"
    }
  ],
  "lastModified": "2026-06-17T03:42:11.953",
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    {
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