CVE-2021-34957

{"id": "CVE-2021-34957", "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": "2024-05-07T23:15:09.547", "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-21-1188/", "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-21-1188/", "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-416"}]}], "descriptions": [{"lang": "en", "value": "Foxit PDF Editor Highlight Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14358."}, {"lang": "es", "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo Use-After-Free de anotaciones destacadas de Foxit PDF Editor. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de Foxit PDF Editor. 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 surge de la falta de validaci\u00f3n de la existencia de un objeto antes de realizar operaciones sobre \u00e9l. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Era ZDI-CAN-14358."}], "lastModified": "2025-08-13T15:56:53.750", "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"}