{"uuid": "4ed23fe9-93c2-49ac-b9f1-49f6b30efcf5", "vulnerability": {"vulnId": "CVE-2023-28771", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "4ed23fe9-93c2-49ac-b9f1-49f6b30efcf5"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2023-05-31T00:00:00+00:00"}, "timestamps": {"asserted_at": "2023-05-31T00:00:00+00:00", "recorded_at": "2026-06-23T11:11:17+00:00", "first_seen_at": "2023-05-31T00:00:00+00:00"}, "scope": {"notes": "KEVIntel entry: 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": "kevintel", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "KEVIntel (kevintel.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...", "vendor": "Zyxel", "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, "cvss_severity": "CRITICAL", "epss_percentile": 0.99931, "used_in_malware": "unknown", "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": "kevintel", "url": "https://kevintel.com/vuln/CVE-2023-28771"}]}