{"uuid": "aa637b60-4c92-4960-9d26-4148ff2a4a3e", "vulnerability": {"vulnId": "CVE-2023-28771", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "aa637b60-4c92-4960-9d26-4148ff2a4a3e"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2023-05-31T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2023-05-31T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2023-05-31T00:00:00Z"}, "scope": {"notes": "KEV entry: Zyxel Multiple Firewalls OS Command Injection Vulnerability | Affected: Zyxel / Multiple Firewalls | Description: Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device. | Required action: Apply updates per vendor instructions. | Due date: 2023-06-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewalls;   https://nvd.nist.gov/vuln/detail/CVE-2023-28771"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-78"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "Multiple Firewalls", "due_date": "2023-06-21", "date_added": "2023-05-31", "vendorProject": "Zyxel", "vulnerabilityName": "Zyxel Multiple Firewalls OS Command Injection Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2023-28771", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-28771"}]}