Dashboard / CVE-2023-4346

CVE-2023-4346

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 0/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

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.

CISA Known Exploited Vulnerability

Vendor / Product KNX Association — KNX Protocol Connection Authorization Option 1
Date Added 2026-07-15
Remediation Due 2026-07-29
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

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
knx connection_authorization -

References & Advisories (2)

https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-01
Third Party Advisory US Government Resource

Bug Bounty Relevance

0 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

1.36%
Raw Score 0.013630
Percentile 71.7%
Date 2026-10-28

Intelligence Sources

kev ref →

External Links