Tenable.sc leverages third-party software to help provide underlying functionality. Three separate third-party components (OpenSSL, Apache HTTP Server, SimpleSAMLphp) were found to contain vulnerabilities, and updated versions have been made available by the providers. Out of caution and in line with good practice, Tenable opted to upgrade the bundled libraries to address the potential impact of these issues in Tenable.sc. Tenable.sc 5.13.0 updates OpenSSL to 1.1.1d, Apache HTTP Server to 2.4.41, and SimpleSAMLphp to 1.17.7 to address the identified vulnerabilities. Note: The CVSSv2 score used in this advisory reflects CVE-2017-3167, as it is considered the highest risk.