Vulnerability-Lookup

FKIE_CVE-2026-3777

Vulnerability from fkie_nvd - Published: 2026-04-01 02:16 - Updated: 2026-06-17 10:44

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution.

References

	URL	Tags
	14984358-7092-470d-8f34-ade47a7658a2	https://www.foxit.com/support/security-bulletins.html	Vendor Advisory

Impacted products

Vendor	Product	Version
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_reader	*
microsoft	windows	-
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_editor	*
foxit	pdf_reader	*
apple	macos	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS"
          ],
          "product": "Foxit PDF Editor",
          "vendor": "Foxit Software Inc.",
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            {
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              "version": "Versions 2025.3 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 14.0.2 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 13.2.2 and earlier"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS"
          ],
          "product": "Foxit PDF Reader",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 2025.3 and earlier"
            }
          ]
        }
      ],
      "source": "14984358-7092-470d-8f34-ade47a7658a2"
    }
  ],
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              "versionEndIncluding": "13.2.2.24014",
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          ],
          "negate": false,
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      ],
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "La aplicaci\u00f3n no valida correctamente la vida \u00fatil y la validez de los punteros internos de la cach\u00e9 de vistas despu\u00e9s de que JavaScript cambia el zoom del documento y el estado de la p\u00e1gina. Cuando un script modifica la propiedad de zoom y luego desencadena un cambio de p\u00e1gina, el objeto de vista original puede ser destruido mientras los punteros obsoletos a\u00fan se mantienen y luego se desreferencian, lo que, bajo estructuras de JavaScript y documentos especialmente dise\u00f1adas, puede llevar a una condici\u00f3n de uso despu\u00e9s de liberaci\u00f3n y potencialmente permitir la ejecuci\u00f3n de c\u00f3digo arbitrario."
    }
  ],
  "id": "CVE-2026-3777",
  "lastModified": "2026-06-17T10:44:11.987",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "14984358-7092-470d-8f34-ade47a7658a2",
        "type": "Secondary"
      },
      {
        "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-01T14:19:00.361361Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2026-04-01T02:16:02.737",
  "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": "Analyzed",
  "weaknesses": [
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          "value": "CWE-416"
        }
      ],
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "type": "Secondary"
    }
  ]
}

CVE-2026-3777 (GCVE-0-2026-3777)

Vulnerability from cvelistv5 – Published: 2026-04-01 01:40 – Updated: 2026-04-02 02:12

Title

Use after free of view cache in Foxit PDF Editor/Reader

Summary

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-01 14:19 UTC

CWE

CWE-416 - Use after free

Assigner

Foxit mitre root

References

1 reference

URL	Tags
https://www.foxit.com/support/security-bulletins.html

Impacted products

2 products

Vendor	Product	Version
Foxit Software Inc.	Foxit PDF Editor	Affected: Versions 2025.3 and earlier Affected: Versions 14.0.2 and earlier Affected: Versions 13.2.2 and earlier
Foxit Software Inc.	Foxit PDF Reader	Affected: Versions 2025.3 and earlier

Credits

Suyue Guo from UCSB Seclab

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3777",
                "options": [
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                  },
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-01T14:19:00.361361Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-01T15:51:25.507Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS"
          ],
          "product": "Foxit PDF Editor",
          "vendor": "Foxit Software Inc.",
          "versions": [
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              "status": "affected",
              "version": "Versions 2025.3 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 14.0.2 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 13.2.2 and earlier"
            }
          ]
        },
        {
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          "platforms": [
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          ],
          "product": "Foxit PDF Reader",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
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              "version": "Versions 2025.3 and earlier"
            }
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        }
      ],
      "credits": [
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          "type": "finder",
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      ],
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      "impacts": [
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              "value": "Potential arbitrary code execution"
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      "metrics": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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          "scenarios": [
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      "problemTypes": [
        {
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              "description": "CWE-416 Use after free",
              "lang": "en",
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        "orgId": "14984358-7092-470d-8f34-ade47a7658a2",
        "shortName": "Foxit"
      },
      "references": [
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          "url": "https://www.foxit.com/support/security-bulletins.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Use after free of view cache in Foxit PDF Editor/Reader",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
    "assignerShortName": "Foxit",
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    "datePublished": "2026-04-01T01:40:27.829Z",
    "dateReserved": "2026-03-08T03:43:24.941Z",
    "dateUpdated": "2026-04-02T02:12:55.076Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.