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THREAT OPS › Threat News › [CISA KEV] CVE-2023-4346 — KNX Association KNX Protocol Connection Authorization Option 1: KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability

[CISA KEV] CVE-2023-4346 — KNX Association KNX Protocol Connection Authorization Option 1: KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability

medcisa_kevPublished 2026-07-15

CVE: CVE-2023-4346 Vendor: KNX Association Product: KNX Protocol Connection Authorization Option 1 Vulnerability: KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability Date Added: 2026-07-15 Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Up

MITRE ATT&CK techniques

Cloud ServicesT1021.007

Indicators of compromise

CVE-2023-4346cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2023-4346