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CVE-2021-41784

Estado: ModificadaAlta (7.8)—💥 PoC

Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, allow attackers to trigger a use-after-free and execute arbitrary code because JavaScript is mishandled.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (3)

Foxit — PDF EditorFoxit — PDF ReaderFoxit — Phantompdf

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-41784",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-08-29T05:15:08.037",
  "references": [
    {
      "url": "https://www.foxit.com/support/security-bulletins.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.foxit.com/support/security-bulletins.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, allow attackers to trigger a use-after-free and execute arbitrary code because JavaScript is mishandled."
    },
    {
      "lang": "es",
      "value": "Foxit PDF Reader versiones anteriores a 11.1 y PDF Editor versiones anteriores a 11.1, y PhantomPDF versiones anteriores a 10.1.6, permiten a atacantes desencadenar un uso de memoria previamente liberada y ejecutar código arbitrario porque JavaScript está manejado inapropiadamente"
    }
  ],
  "lastModified": "2026-06-17T04:08:54.820",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "64FC5358-5696-4AF0-A415-9DD745F99C79",
              "versionEndExcluding": "11.1",
              "versionStartIncluding": "11.0"
            },
            {
              "criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "98CC973C-C3EA-4AD3-81F9-A8FC55AD6B56",
              "versionEndExcluding": "11.1",
              "versionStartIncluding": "11.0"
            },
            {
              "criteria": "cpe:2.3:a:foxit:phantompdf:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F4ABB9A4-A4FC-40B4-99F9-43114D7D079A",
              "versionEndExcluding": "10.1.6"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
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          ],
          "operator": "OR"
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      "operator": "AND"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}