Since it is a universalk9 image, all features (Data, Unified Communications, Security) are bundled into a single binary. Features are unlocked via Right-To-Use (RTU) or permanent licenses rather than requiring different software installs. Technical Requirements
Though this is a mature release, CVE databases show that IOS 15.7(3)M8 is not vulnerable to the most critical CVEs from earlier 15.x versions (e.g., CVE-2018-0171, "Memcrashed"). However, it remains susceptible to issues found in 2019–2020. Before deploying, review: i--- Download C2900-universalk9-mz.spa.157-3.m8.bin --