A vulnerability, which was classified as critical, has been found in Oracle SQLcl 19c. Affected by this issue is an unknown code of the component Local Logon. Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.