nexus2-oss -- Multiple vulerabilities

Sonatype reports:

Several RCE vulnerabilities have been found and corrected in 2.14.15:
CVE-2019-16530: An attacker with elevated privileges can upload a
specially crafted file. That file can contain commands that will
be executed on the system, with the same privileges as the user
running the server.
CVE-2019-15893: A Remote Code Execution vulnerability has been
discovered in Nexus Repository Manager requiring immediate
action. The vulnerability allows for an attacker with
administrative access to NXRM to create repostories that can
grant access to read/execute system data outside the scope of
NXRM.
CVE-2019-5475: A vulnerability has been found that can allow
user’s with administrative privileges to run processes on the
target server, that the nxrm os user has access to.