The Samba Team has released security updates to address vulnerabilities in multiple versions of Samba. An attacker could exploit one of these vulnerabilities to take control of an affected system.
The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the Samba Security Announcements for CVE-2019-14861 and CVE-2019-14870 and apply the necessary updates and workarounds.