CVE-2021-34950

{"id": "CVE-2021-34950", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-05-07T23:15:08.343", "references": [{"url": "https://www.foxit.com/support/security-bulletins.html", "tags": ["Vendor Advisory"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1181/", "tags": ["Third Party Advisory"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.foxit.com/support/security-bulletins.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1181/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "Foxit PDF Reader Annotation Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the handling of Annotation objects. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14396."}, {"lang": "es", "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo de lectura fuera de los l\u00edmites de anotaci\u00f3n de Foxit PDF Reader. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de Foxit PDF Reader. Se requiere la interacci\u00f3n del usuario para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una p\u00e1gina maliciosa o abrir un archivo malicioso. La falla espec\u00edfica existe en el manejo de objetos de anotaci\u00f3n. El problema se debe a la falta de validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede provocar una lectura m\u00e1s all\u00e1 del final de un objeto asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Era ZDI-CAN-14396."}], "lastModified": "2025-08-13T15:45:03.317", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D4740121-8AB8-4D00-A864-CAF435A5D772", "versionEndIncluding": "10.1.5.37672"}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:11.0.0.49893:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9A8FD70A-F288-457E-B3A4-3D5453CD04E9"}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:11.0.1.49938:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EA4D1FF-8374-466E-84BE-F2A1E1EFD717"}, {"criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AE7C2DEA-21FD-48EF-9F86-ECF2A05DA38F", "versionEndIncluding": "11.0.1.49938"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}