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CVE-2022-40674

Estado: ModificadaAlta (8.1)—

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

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 (3)

Debian — Debian LinuxFedoraproject — FedoraLibexpat Project — Libexpat

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-40674",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-40674",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-30T19:17:58.194138Z"
        }
      }
    ],
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      },
      {
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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      "affectedData": [
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          "versions": [
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  "published": "2022-09-14T11:15:54.020",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
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    {
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      "description": [
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          "value": "CWE-416"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c."
    },
    {
      "lang": "es",
      "value": "libexpat versiones anteriores a 2.4.9, presenta un uso de memoria previamente liberada en la función doContent en el archivo xmlparse.c"
    }
  ],
  "lastModified": "2026-06-17T05:01:48.967",
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