{"uuid": "32d9d250-a84f-4d69-ab6d-0cf8b9a4c68e", "vulnerability": {"vulnId": "CVE-2023-4346", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "gna": 1, "object_uuid": "32d9d250-a84f-4d69-ab6d-0cf8b9a4c68e"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-07-15T00:00:00+00:00"}, "timestamps": {"asserted_at": "2026-07-15T00:00:00+00:00", "recorded_at": "2026-07-15T17:00:01+00:00", "first_seen_at": "2026-07-15T00:00:00+00:00"}, "scope": {"notes": "KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability | Affected: KNX Association / KNX Protocol Connection Authorization Option 1 | Description: KNX Association KNX Protocol Connection Authorization Option 1 contains an overly restrictive account lockout mechanism vulnerability that could allow an attacker to purge all devices without additional security options enabled and set a BCU key to lock the device.  | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-07-29 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-01 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2023-4346"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-645"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "KNX Protocol Connection Authorization Option 1", "due_date": "2026-07-29", "date_added": "2026-07-15", "vendorProject": "KNX Association", "vulnerabilityName": "KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2023-4346", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-4346"}]}