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CVE-2021-25397

Estado: ModificadaMedia (5.5)—

Una vulnerabilidad de control de acceso inapropiado en TelephonyUI versiones anteriores a SMR MAY-2021 Release 1, permite a atacantes locales escribir archivos arbitrarios del proceso de telefonía por medio de aplicaciones no confiables

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-2021-25397",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "mobile.security@samsung.com",
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.8,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 2.5
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
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  "affected": [
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      "source": "mobile.security@samsung.com",
      "affectedData": [
        {
          "vendor": "Samsung Mobile",
          "product": "Samsung Mobile Devices",
          "versions": [
            {
              "status": "affected",
              "version": "P(9.0), Q(10.0), R(11.0)",
              "lessThan": "SMR MAY-2021 Release 1",
              "versionType": "custom"
            }
          ]
        }
      ]
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  ],
  "published": "2021-06-11T15:15:09.230",
  "references": [
    {
      "url": "https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "source": "mobile.security@samsung.com"
    },
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5",
      "tags": [
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      "source": "mobile.security@samsung.com"
    },
    {
      "url": "https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "mobile.security@samsung.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-926"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper access control vulnerability in TelephonyUI prior to SMR MAY-2021 Release 1 allows local attackers to write arbitrary files of telephony process via untrusted applications."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de control de acceso inapropiado en TelephonyUI versiones anteriores a SMR MAY-2021 Release 1, permite a atacantes locales escribir archivos arbitrarios del proceso de telefonía por medio de aplicaciones no confiables"
    }
  ],
  "lastModified": "2026-06-17T03:42:00.620",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "vulnerable": true,
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            }
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          "operator": "OR"
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  "sourceIdentifier": "mobile.security@samsung.com"
}