UAF in Foxit PDF Editor/Reader via XFA calculate event

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-5939",
    "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
    "assignerShortName": "Foxit",
    "dateUpdated": "2026-04-27T11:00:29.102Z",
    "dateReserved": "2026-04-09T03:42:09.733Z",
    "datePublished": "2026-04-27T11:00:29.102Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "14984358-7092-470d-8f34-ade47a7658a2",
        "shortName": "Foxit",
        "dateUpdated": "2026-04-27T11:00:29.102Z"
      },
      "title": "UAF in Foxit PDF Editor/Reader via XFA calculate event",
      "descriptions": [
        {
          "lang": "en",
          "value": "A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution."
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Foxit Software Inc.",
          "product": "Foxit PDF Editor",
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Versions 2026.1 and earlier",
              "status": "affected"
            },
            {
              "version": "Versions 14.0.3 and earlier",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Foxit Software Inc.",
          "product": "Foxit PDF Reader",
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Versions 2026.1 and earlier",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-416 Use after free",
              "cweId": "CWE-416",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.foxit.com/support/security-bulletins.html"
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Potential arbitrary code execution"
            }
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ],
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "attackVector": "LOCAL",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "REQUIRED",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Haein Lee from KAIST Hacking Lab",
          "type": "finder"
        }
      ]
    }
  }
}