The recently announced vulnerability, known as CVE-2021-4428 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-44228) affects Java-based applications that use Log4j 2 versions 2.0 to 2.14.1.
SMT Software (e.g. MASTA) is written in C# on the .NET platform and makes no use of Java code or components. SMT software is therefore unaffected by this security advisory.
If you have any further questions, please contact firstname.lastname@example.org for assistance.