Adobe released an emergency patch on Tuesday to fix a Flash Player vulnerability that was fixed last month but was quickly exploited again.
The company had issued a patch for the flaw, called CVE-2104-8439, but attackers soon found a way around that fix.
The latest update to Flash adds a “mitigation” for CVE-2104-8439, a vulnerability that could lead to the installation of malware.
The latest version for Windows and Apple’s Mac OS is 18.104.22.168, and the latest for Linux is 22.214.171.1244. Flash Player for Google’s Chrome and Microsoft’s Internet Explorer browsers should automatically update, but the update also can be installed manually from Adobe.