CVE-2026-5941

{
  "id": "CVE-2026-5941",
  "sourceIdentifier": "14984358-7092-470d-8f34-ade47a7658a2",
  "published": "2026-04-27T12:16:24.487",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed form field hierarchies, leading to invalid memory writes and program crashes during internal data structure construction."
    },
    {
      "lang": "es",
      "value": "Defectos en la lógica de análisis provocan que datos no-firma sean identificados erróneamente como firmas válidas al procesar jerarquías de campos de formulario malformadas, lo que lleva a escrituras de memoria no válidas y caídas del programa durante la construcción de estructuras de datos internas."
    }
  ],
  "affected": [
    {
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "affectedData": [
        {
          "vendor": "Foxit Software Inc.",
          "product": "Foxit PDF Editor",
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "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",
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "versions": [
            {
              "version": "Versions 2026.1 and earlier",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "14984358-7092-470d-8f34-ade47a7658a2",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-27T00:00:00+00:00",
          "id": "CVE-2026-5941",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "14.0.0",
              "versionEndExcluding": "14.0.4",
              "matchCriteriaId": "6C4B8779-474C-43FC-B02E-3754BFAB2432"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2023.0.0",
              "versionEndExcluding": "2026.1.1",
              "matchCriteriaId": "D3D204C5-D29B-4341-B48E-6F634E41126E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "2026.1.1",
              "matchCriteriaId": "C18DA4A1-62E6-4734-840D-B5280B765A9E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.foxit.com/support/security-bulletins.html",
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}