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CVE-2021-21942

Estado: ModificadaAlta (8.8)—

An out-of-bounds write vulnerability exists in the TIFF YCbCr image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to remote code execution. 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)

Accusoft — Imagegear

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21942",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2021-21942",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-15T18:21:03.141853Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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    "cvssMetricV30": [
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        "type": "Secondary",
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        "cvssData": {
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  "affected": [
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      "affectedData": [
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          "vendor": "Accusoft",
          "product": "ImageGear",
          "versions": [
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              "version": "19.10"
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          ]
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  ],
  "published": "2022-04-14T20:15:08.247",
  "references": [
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1371",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
    },
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1371",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds write vulnerability exists in the TIFF YCbCr image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de escritura fuera de límites en la funcionalidad del analizador de imágenes TIFF YCbCr de Accusoft ImageGear versión 19.10. Un archivo especialmente diseñado puede conllevar a una ejecución de código remota. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:36:24.153",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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          "operator": "OR"
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  "sourceIdentifier": "talos-cna@cisco.com"
}