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CVE-2022-31796

Estado: ModificadaMedia (6.5)—

libjpeg 1.63 has a heap-based buffer over-read in HierarchicalBitmapRequester::FetchRegion in hierarchicalbitmaprequester.cpp because the MCU size can be different between allocation and use.

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)

Jpeg — Libjpeg

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-31796",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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  "affected": [
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      "affectedData": [
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  "published": "2022-06-02T14:15:58.153",
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      "url": "https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c930895d",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
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      "lang": "en",
      "value": "libjpeg 1.63 has a heap-based buffer over-read in HierarchicalBitmapRequester::FetchRegion in hierarchicalbitmaprequester.cpp because the MCU size can be different between allocation and use."
    },
    {
      "lang": "es",
      "value": "libjpeg versión 1.63, presenta una lectura excesiva del búfer en la región heap de la memoria en la función HierarchicalBitmapRequester::FetchRegion en el archivo hierarchicalbitmaprequester.cpp porque el tamaño de la MCU puede ser diferente entre la asignación y el uso"
    }
  ],
  "lastModified": "2026-06-17T04:46:19.483",
  "configurations": [
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