{"uuid": "ef874864-b2dd-496f-8a6d-c2f4289d6ba9", "vulnerability": {"vulnId": "CVE-2023-28771", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "ef874864-b2dd-496f-8a6d-c2f4289d6ba9"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2023-05-31T02:00:00+02:00"}, "timestamps": {"asserted_at": "2023-05-31T00:00:00+00:00", "recorded_at": "2026-10-02T07:08:31+00:00", "first_seen_at": "2023-05-31T00:00:00+00:00"}, "scope": {"notes": "Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG... | Affected: Zyxel / ZyWALL/USG series firmware, VPN series firmware, USG FLEX series firmware, ATP series firmware | CVSS: 9.8 (CRITICAL) | EPSS: 0.99284 | Used in malware: unknown | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "previdian", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "Previdian (previdian.com)", "title": "Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG...", "cve_id": "CVE-2023-28771", "vendor": "Zyxel", "ghsa_id": null, "product": "ZyWALL/USG series firmware, VPN series firmware, USG FLEX series firmware, ATP series firmware", "added_date": "2023-05-31T00:00:00.000Z", "cvss_score": 9.8, "epss_score": 0.99284, "previous_ids": [], "cvss_severity": "CRITICAL", "virtual_patch": false, "cvss_estimated": false, "epss_percentile": 0.99937, "used_in_malware": "unknown", "vulnerability_id": "CVE-2023-28771", "ahead_of_cisa_kev": null, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2023-28771", "url": "https://www.cve.org/CVERecord?id=CVE-2023-28771"}, {"id": "previdian", "url": "https://previdian.com/CVE-2023-28771"}]}