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KNX Association vulnerabilities being exploited

1 KNX Association flaw was confirmed exploited in the wild in the past 365 days, across 1 product: KNX Protocol Connection Authorization Option 1. If you run any of them, patch these first.

AddedExploited vulnerabilityFix by
2026-07-15CVE-2023-4346 KNX Protocol Connection Authorization Option 1
KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability

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.

2026-07-29

Source: CISA Known Exploited Vulnerabilities catalog 2026.10.29 (live). A listing means some versions are affected: check yours in the advisory. Guidance only.