CVE-2023-7158

Estado: ModificadaCrítica (9.8)—

A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.23%
Percentil entre todas las CVEs puntuadas: 68
Fecha de la puntuación: 6/10/2026

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)

Micropython — Micropython

CWE

CWE-122
CWE-787

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-7158",
  "cveTags": [],
  "metrics": {
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        "type": "Secondary",
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          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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              "version": "1.14.0"
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              "version": "1.16.0"
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              "status": "affected",
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              "version": "1.20.0"
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  "published": "2023-12-29T07:15:11.060",
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180."
    },
    {
      "lang": "es",
      "value": "Se encontró una vulnerabilidad en MicroPython hasta 1.21.0. Ha sido clasificada como crítica. La función slice_indices del archivo objslice.c es afectada por la vulnerabilidad. La manipulación conduce a un desbordamiento de búfer de almacenamiento dinámico. Es posible lanzar el ataque de forma remota. La explotación ha sido divulgada al público y puede utilizarse. La actualización a la versión 1.22.0 puede solucionar este problema. Se recomienda actualizar el componente afectado. El identificador de esta vulnerabilidad es VDB-249180."
    }
  ],
  "lastModified": "2026-06-17T06:52:12.303",
  "configurations": [
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  "sourceIdentifier": "cna@vuldb.com"
}