CVE-2026-91811 (GCVE-0-2026-91811)

Vulnerability from cvelistv5 – Published: 2026-09-23 07:49 – Updated: 2026-09-23 14:39
VLAI
Title
Foxit PDF Editor/Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Summary
A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:39 UTC
CWE
Assigner
Foxit CNA under the mitre root
CNA scorecard C 70/100 over 69 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Foxit Software Inc. Foxit PDF Editor Affected: Versions 2026.2 and earlier
Affected: Versions 14.0.7 and earlier
Affected: Versions 13.2.6 and earlier
guessed Create a notification for this product.
Foxit Software Inc. Foxit PDF Reader Affected: Versions 2026.2 and earlier
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-91811",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T14:39:37.958469Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T14:39:49.026Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS"
          ],
          "product": "Foxit PDF Editor",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 2026.2 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 14.0.7 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 13.2.6 and earlier"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS"
          ],
          "product": "Foxit PDF Reader",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 2026.2 and earlier"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "kai63001 working with TrendAI Zero Day Initiative"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader\u2019s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash."
            }
          ],
          "value": "A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader\u2019s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Potential arbitrary code execution"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787: Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T07:49:58.872Z",
        "orgId": "14984358-7092-470d-8f34-ade47a7658a2",
        "shortName": "Foxit"
      },
      "references": [
        {
          "url": "https://www.foxit.com/support/security-bulletins.html"
        }
      ],
      "title": "Foxit PDF Editor/Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
    "assignerShortName": "Foxit",
    "cveId": "CVE-2026-91811",
    "datePublished": "2026-09-23T07:49:58.872Z",
    "dateReserved": "2026-09-15T07:34:45.815Z",
    "dateUpdated": "2026-09-23T14:39:49.026Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-91811",
      "date": "2026-10-19",
      "epss": "0.00116",
      "percentile": "0.01489"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Windows",
                  "MacOS"
                ],
                "product": "Foxit PDF Editor",
                "vendor": "Foxit Software Inc.",
                "versions": [
                  {
                    "status": "affected",
                    "version": "Versions 2026.2 and earlier"
                  },
                  {
                    "status": "affected",
                    "version": "Versions 14.0.7 and earlier"
                  },
                  {
                    "status": "affected",
                    "version": "Versions 13.2.6 and earlier"
                  }
                ]
              },
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Windows",
                  "MacOS"
                ],
                "product": "Foxit PDF Reader",
                "vendor": "Foxit Software Inc.",
                "versions": [
                  {
                    "status": "affected",
                    "version": "Versions 2026.2 and earlier"
                  }
                ]
              }
            ],
            "source": "14984358-7092-470d-8f34-ade47a7658a2"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F56A28CE-B170-4EF6-9252-DAAAE95C8EFC",
                    "versionEndIncluding": "13.2.5.63482",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "ACB35909-C2E9-45E0-A63D-A80DCD8ECC24",
                    "versionEndIncluding": "14.0.7.33751",
                    "versionStartIncluding": "14.0.0.33046",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0C75FEE6-54F3-49C6-BAEA-A09D23BE5D64",
                    "versionEndIncluding": "2023.3.0.23028",
                    "versionStartIncluding": "2023.1.0.15510",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2C06BC41-9831-4AE3-B10B-3FC313D01580",
                    "versionEndIncluding": "2024.4.1.27687",
                    "versionStartIncluding": "2024.1.0.23997",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AD0AAFC0-5B9B-4A11-8967-4699792850F1",
                    "versionEndIncluding": "2025.3.0.35737",
                    "versionStartIncluding": "2025.1.0.27937",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "757FC908-7C20-4D94-B5E4-83590D451EA1",
                    "versionEndIncluding": "2026.2.0.39747",
                    "versionStartIncluding": "2026.1.0.36452",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "379C8399-B43C-47AE-BA7B-0FAC7682BF7B",
                    "versionEndIncluding": "2026.2.0.39747",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2C7DEE55-1FE3-4B41-975D-BB926E9E69D4",
                    "versionEndIncluding": "13.2.2.63349",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C887A2B3-8FF9-4F97-9580-D085BEDE7201",
                    "versionEndIncluding": "14.0.7.69441",
                    "versionStartIncluding": "14.0.0.68868",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D8785CCE-C44C-4908-9133-13A580D5BECB",
                    "versionEndIncluding": "2023.3.0.63083",
                    "versionStartIncluding": "2023.1.0.55583",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "CF043D20-0E28-481C-8756-D1301FAE67D2",
                    "versionEndIncluding": "2024.4.1.66479",
                    "versionStartIncluding": "2024.1.0.63682",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "20698FD4-5E28-4206-ACEA-4FCD24AD23BE",
                    "versionEndIncluding": "2025.3.0.69570",
                    "versionStartIncluding": "2025.1.0.66692",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "72510597-6566-4748-8F69-099EBF8B5D21",
                    "versionEndIncluding": "2026.2.0.72029",
                    "versionStartIncluding": "2026.1.0.70169",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A6C4B75F-C060-4B92-9646-0E621DB9BF63",
                    "versionEndIncluding": "2026.2.1.39815",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader\u2019s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash."
          }
        ],
        "id": "CVE-2026-91811",
        "lastModified": "2026-10-15T14:10:54.133",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "14984358-7092-470d-8f34-ade47a7658a2",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-91811",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T14:39:37.958469Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-09-23T08:17:13.307",
        "references": [
          {
            "source": "14984358-7092-470d-8f34-ade47a7658a2",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.foxit.com/support/security-bulletins.html"
          }
        ],
        "sourceIdentifier": "14984358-7092-470d-8f34-ade47a7658a2",
        "vulnStatus": "Undergoing Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "14984358-7092-470d-8f34-ade47a7658a2",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-91811",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-23T14:39:37.958469Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-23T14:39:45.491Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Windows",
                "MacOS"
              ],
              "product": "Foxit PDF Editor",
              "vendor": "Foxit Software Inc.",
              "versions": [
                {
                  "status": "affected",
                  "version": "Versions 2026.2 and earlier"
                },
                {
                  "status": "affected",
                  "version": "Versions 14.0.7 and earlier"
                },
                {
                  "status": "affected",
                  "version": "Versions 13.2.6 and earlier"
                }
              ]
            },
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Windows",
                "MacOS"
              ],
              "product": "Foxit PDF Reader",
              "vendor": "Foxit Software Inc.",
              "versions": [
                {
                  "status": "affected",
                  "version": "Versions 2026.2 and earlier"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "kai63001 working with TrendAI Zero Day Initiative"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader\u2019s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash."
                }
              ],
              "value": "A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader\u2019s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash."
            }
          ],
          "impacts": [
            {
              "descriptions": [
                {
                  "lang": "en",
                  "value": "Potential arbitrary code execution"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-787",
                  "description": "CWE-787: Out-of-bounds Write",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-23T07:49:58.872Z",
            "orgId": "14984358-7092-470d-8f34-ade47a7658a2",
            "shortName": "Foxit"
          },
          "references": [
            {
              "url": "https://www.foxit.com/support/security-bulletins.html"
            }
          ],
          "title": "Foxit PDF Editor/Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability",
          "x_generator": {
            "engine": "Vulnogram 1.0.5"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
        "assignerShortName": "Foxit",
        "cveId": "CVE-2026-91811",
        "datePublished": "2026-09-23T07:49:58.872Z",
        "dateReserved": "2026-09-15T07:34:45.815Z",
        "dateUpdated": "2026-09-23T14:39:49.026Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.