HIGHVulnerability
Verified
Global

CISA KEV: KNX Association KNX Protocol Connection Authorization Option 1 — KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability

·Source: CISA KEV

Updated:

Executive Summary

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.

Analysis

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. Added to CISA Known Exploited Vulnerabilities catalog on 2026-07-15. Remediation due: 2026-07-29.

Indicators of Compromise (1)

CVE (1)
CVE-2023-4346
NVDMITRE CVE
Source Attribution

Originally published by CISA KEV on Jul 15, 2026. Verified by: CISA.

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