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CVE-2023-21394

Status: ModifiedMedium (5.5)—

In registerPhoneAccount of TelecomServiceImpl.java, there is a possible way to reveal images from another user due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

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)

Google — Android

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-21394",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Android",
          "versions": [
            {
              "status": "affected",
              "version": "13"
            },
            {
              "status": "affected",
              "version": "12L"
            },
            {
              "status": "affected",
              "version": "12"
            },
            {
              "status": "affected",
              "version": "11"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-10-30T18:15:09.813",
  "references": [
    {
      "url": "https://android.googlesource.com/platform/packages/services/Telecomm/+/68dca62035c49e14ad26a54f614199cb29a3393f",
      "source": "security@android.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/2023-12-01",
      "source": "security@android.com"
    },
    {
      "url": "https://android.googlesource.com/platform/packages/services/Telecomm/+/68dca62035c49e14ad26a54f614199cb29a3393f",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://source.android.com/security/bulletin/2023-12-01",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In registerPhoneAccount of TelecomServiceImpl.java, there is a possible way to reveal images from another user due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation."
    },
    {
      "lang": "es",
      "value": "En Telecomm, existe una posible omisión de un límite de seguridad multiusuario debido a un diputado confundido. Esto podría dar lugar a la divulgación de información local sin necesidad de privilegios de ejecución adicionales. La interacción del usuario no es necesaria para la explotación."
    }
  ],
  "lastModified": "2026-06-17T05:32:30.067",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "530F3220-8957-4F6C-9790-2D4A4CC4122B",
              "versionEndExcluding": "14.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@android.com"
}