Adobe has urged users to patch their Windows, OS X and Linux editions of Flash Player to address 23 security vulnerabilities, including one that is actively being targeted in the wild.
The March update includes a number of fixes for vulnerabilities that could, if exploited, allow an attacker to remotely execute code on a targeted system simply by loading a malformed Flash file. In other words, visiting a booby-trapped webpage, or viewing a Flash ad, could inject malware into your computer.
One of those flaws, CVE-2016-1010, is being used for what Adobe calls "limited, targeted attacks."
Users running Flash Player 18.104.22.1686 and earlier for Windows, OS X and Linux should look to update the software.
Flash Player for Linux 22.214.171.1249 and earlier and Adobe AIR Desktop Runtime and AIR SDK 126.96.36.1990 as well as AIR for Android 188.8.131.52 and earlier should also be updated if possible. You can check your installed version here.
Flash, of course, is what makes video work on Youtube and other places. It's pretty much everywhere and so is a favorite target of the Bad Guys.Users who have activated the "Allow Adobe to install updates" option on Flash Player for Windows and OS X should receive the update automatically. Google's Chrome browser installs Flash updates automatically, too.
Follow the link above and it will tell you if you are vulnerable and will give you a button to update.