KNX devices that use KNX Connection Authorization and support Option 1 are, depending on the implementation, vulnerable to being locked and users being unable to reset them to gain access to the device.
Buffer overflow in the Group messages monitor (Falcon) in KNX ETS 4.1.5 (Build 3246) allows remote attackers to execute arbitrary code via a crafted KNXnet/IP UDP packet.
KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information.
KNX ETS6 through 6.0.0 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information, a similar issue to CVE-2021-36799.
THREATIST.IORead the docs