{"uuid": "5059e569-2113-43f7-b6a8-1fed564ccdc2", "vulnerability": {"vulnId": "CVE-2020-6819", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "5059e569-2113-43f7-b6a8-1fed564ccdc2"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2021-11-03T00:00:00+00:00"}, "timestamps": {"asserted_at": "2021-11-03T00:00:00+00:00", "recorded_at": "2026-06-23T11:11:17+00:00", "first_seen_at": "2021-11-03T00:00:00+00:00"}, "scope": {"notes": "KEVIntel entry: Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in... | Affected: Mozilla / Thunderbird, Firefox, Firefox ESR | CVSS: 8.1 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "kevintel", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "KEVIntel (kevintel.com)", "title": "Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in...", "vendor": "Mozilla", "product": "Thunderbird, Firefox, Firefox ESR", "added_date": "2021-11-03T00:00:00.000Z", "cvss_score": 8.1, "epss_score": null, "cvss_severity": "HIGH", "epss_percentile": null, "used_in_malware": "unknown", "ahead_of_cisa_kev": null, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2020-6819", "url": "https://www.cve.org/CVERecord?id=CVE-2020-6819"}, {"id": "kevintel", "url": "https://kevintel.com/vuln/CVE-2020-6819"}]}