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CVE-2021-40426

Estado: ModificadaAlta (8.8)—

A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox 14.4.2 and master commit 42b3557e. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

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)

Sound Exchange Project — Sound Exchange

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-40426",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-40426",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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            {
              "automatable": "yes"
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          "version": "2.0.3",
          "timestamp": "2025-04-15T18:20:26.178512Z"
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    "cvssMetricV2": [
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    "cvssMetricV30": [
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  "affected": [
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  "published": "2022-04-14T20:15:09.110",
  "references": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
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      ]
    },
    {
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      "description": [
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      "value": "A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox 14.4.2 and master commit 42b3557e. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability."
    },
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      "lang": "es",
      "value": "Se presenta una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria en la funcionalidad sphere.c start_read() de Sound Exchange libsox versión 14.4.2 y el commit maestro 42b3557e. Un archivo especialmente diseñado puede conllevar a un desbordamiento del búfer de la pila. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T04:06:54.807",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sound_exchange_project:sound_exchange:14.4.2:*:*:*:*:*:*:*",
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  "sourceIdentifier": "talos-cna@cisco.com"
}