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CVE-2023-21287

Status: ModifiedCritical (9.8)—

In multiple locations, there is a possible code execution due to type confusion. This could lead to remote code execution 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-2023-21287",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-21287",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-09T14:37:29.122726Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "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"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Android",
          "versions": [
            {
              "status": "affected",
              "version": "13"
            },
            {
              "status": "affected",
              "version": "12L"
            },
            {
              "status": "affected",
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            },
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          "defaultStatus": "unaffected"
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      "affectedData": [
        {
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          "product": "admob",
          "versions": [
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              "version": "11"
            },
            {
              "status": "affected",
              "version": "12"
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              "status": "affected",
              "version": "12l"
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            {
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          "defaultStatus": "unknown"
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  ],
  "published": "2023-08-14T22:15:13.663",
  "references": [
    {
      "url": "https://android.googlesource.com/platform/external/freetype/+/a79e80a25874dacaa266906a9048f13d4bac41c6",
      "tags": [
        "Patch"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/2023-08-01",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://android.googlesource.com/platform/external/freetype/+/a79e80a25874dacaa266906a9048f13d4bac41c6",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://source.android.com/security/bulletin/2023-08-01",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In multiple locations, there is a possible code execution due to type confusion. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n"
    }
  ],
  "lastModified": "2026-06-17T05:32:15.210",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:11.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F120D280-287A-474F-9DC5-CBBC4B4C7237"
            },
            {
              "criteria": "cpe:2.3:o:google:android:12.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16820CAF-0A8A-45C8-B5A8-979EA0407389"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "F3B54CC6-C4CB-4BBD-AADC-BC7A80F4F621"
            },
            {
              "criteria": "cpe:2.3:o:google:android:13.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "08A26AC2-409E-499A-B0D5-8C2B5038947D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@android.com"
}