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CVE-2020-0423

Status: ModifiedHigh (7.8)—💥 PoC

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A

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 (2)

Debian — Debian LinuxGoogle — Android

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-0423",
  "cveTags": [],
  "metrics": {
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-416"
        },
        {
          "lang": "en",
          "value": "CWE-667"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A"
    },
    {
      "lang": "es",
      "value": "En la función binder_release_work del archivo binder.c, presenta una posibilidad de un uso de la memoria previamente liberada debido a un bloqueo inapropiado. Esto podría conllevar a una escalada de privilegios local en el kernel sin ser necesarios privilegios de ejecución adicionales. No es requerida una interacción del usuario para su explotación. Producto: Android,  Versiones: kernel de Android, ID de Android: A-161151868, Referencias: N/A"
    }
  ],
  "lastModified": "2026-06-17T02:45:48.927",
  "configurations": [
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