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CVE-2023-21286

Status: ModifiedHigh (7.8)—💥 PoC

In visitUris of RemoteViews.java, there is a possible way to reveal images across users due to a missing permission check. This could lead to local escalation of privilege 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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Google — Android

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2023-21286",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-21286",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-09T14:40:47.084796Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "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"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
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          ],
          "vendor": "google",
          "product": "android",
          "versions": [
            {
              "status": "affected",
              "version": "11"
            },
            {
              "status": "affected",
              "version": "12"
            },
            {
              "status": "affected",
              "version": "12l"
            },
            {
              "status": "affected",
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            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-08-14T22:15:13.603",
  "references": [
    {
      "url": "https://android.googlesource.com/platform/frameworks/base/+/a65429742caf05205ea7f1c2fdd1119ca652b810",
      "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/frameworks/base/+/a65429742caf05205ea7f1c2fdd1119ca652b810",
      "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": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In visitUris of RemoteViews.java, there is a possible way to reveal images across users due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n"
    }
  ],
  "lastModified": "2026-06-17T05:32:15.087",
  "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"
            },
            {
              "criteria": "cpe:2.3:o:google:android:12.1:-:*:*:*:*:*:*",
              "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"
}