FKIE_CVE-2020-26534

Vulnerability from fkie_nvd - Published: 2020-10-02 08:15 - Updated: 2026-06-17 03:08
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is an Opt object use-after-free related to Field::ClearItems and Field::DeleteOptions, during AcroForm JavaScript execution.
References
cve@mitre.orghttps://www.foxitsoftware.com/support/security-bulletins.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.foxitsoftware.com/support/security-bulletins.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
foxitsoftware foxit_reader *
foxitsoftware phantompdf *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:foxitsoftware:foxit_reader:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "301584EF-3A6F-44AD-9A4F-261B28A8FCAA",
              "versionEndExcluding": "10.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E290754A-AAD1-4373-9D74-2F4AC0DD9E0C",
              "versionEndExcluding": "10.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is an Opt object use-after-free related to Field::ClearItems and Field::DeleteOptions, during AcroForm JavaScript execution."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Foxit Reader y PhantomPDF versiones anteriores a 10.1.\u0026#xa0;Existe un uso de la memoria previamente liberada del objeto Opt relacionado con las funciones Field::ClearItems y Field::DeleteOptions, durante una ejecuci\u00f3n JavaScript de AcroForm"
    }
  ],
  "id": "CVE-2020-26534",
  "lastModified": "2026-06-17T03:08:09.143",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-10-02T08:15:12.447",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.foxitsoftware.com/support/security-bulletins.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.foxitsoftware.com/support/security-bulletins.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.