Summary Because of the missing "checkLink(String)" override in the SecurityManager, students can load libraries and execute arbitrary code. Details Using "System.load(String)" or "System.loadLibrary​(String)" students can load and execute arbitrary code. private static native void start(List<String> args); public static void main(String[] args) { System.load(new File("path_to_lib.so").getAbsolutePath()); start(List.of(args)); } Adding this to the security manager (and a translation) should fix the issue: @Override public void checkExec(String cmd) { try { if (enterPublicInterface()) return; throw new SecurityException(localized("security.error_link")); //$NON-NLS-1$ } finally { exitPublicInterface(); } } PoC See details. Impact Arbitrary code execution.