Summary
Successful exploitation of this vulnerability could cause users to lose access to their device, potentially with no way to reset the device.
Vulnerabilities 1
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High 7.5CVE-2023-4346 Exploited
KNX devices that use KNX Connection Authorization and support Option 1 are, depending on the implementation, vulnerable…
KEV Jul 15, 2026
Revision history
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#1
Initial Publication
References
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ICSA Advisory ICSA-23-236-01 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-01
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Recommended Practices
https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B