Due to the recent news coverage, the question has occasionally been raised whether or not 
is affected by the log4j security vulnerability published in late 2021 as CVE-2021-44228.
Short answer: no 
has no contact with the Java runtime environment in general and with the Java component log4j in particular. Log4j was not used in the realisation of and therefore is not affected by the security vulnerability known as “log4shell”.
The 3rd party components used in the realisation of Common Vision Blox also do not use log4j. The open source C++ component log4cpp, a component of the GenApi reference implementation, only has a similar name, but is not based on the Java runtime environment, which would be necessary for a “log4shell” attack.