Released as part of Oracle’s January 2018 Critical Patch Update, Java 8 Update 161 fixes twenty-one security vulnerabilities in previous versions.

You’re much less likely to be affected by Java vulnerabilities these days, as most web browsers no longer support Java. The only mainstream browser that still runs Java code is Internet Explorer. If you use Internet Explorer with Java enabled, you should update Java as soon as possible, via the Java Control Panel applet, or by visiting the official Java download page.