CVE-2023-43686

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later). A large number of Firefox preference files can cause the parser to ignore other browser configuration files, leading to a denial of service."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Malwarebytes 4.x y 5.x (y Nebula 2020-10-21 y posteriores). Un gran n\u00famero de archivos de preferencias de Firefox puede hacer que el analizador ignore otros archivos de configuraci\u00f3n del navegador, lo que lleva a una denegaci\u00f3n de servicio."}], "id": "CVE-2023-43686", "lastModified": "2026-07-23T08:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-43686", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-09T19:26:41.169928Z", "version": "2.0.3"}}]}, "published": "2026-06-09T19:16:41.907", "references": [{"source": "cve@mitre.org", "url": "https://www.malwarebytes.com/secure/cves/cve-2023-43686"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-755"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.x,6.x)"}}], "enrichment": {"confidence": 75.0, "confidence_source": "inferred", "scores": [{"score": 75.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "malwarebytes", "vendor": "malwarebytes"}], "created": "2026-06-09T22:30:14.741199+00:00", "title": "Denial of Service via Large Firefox Preference Files in Malwarebytes", "updated": "2026-06-10T00:30:16.778409+00:00", "vendors": ["malwarebytes", "malwarebytes$PRODUCT$malwarebytes"]}