Adobe on Tuesday released an update for Shockwave Player, which displays rich web content, to address a number of "critical" vulnerabilities that could allow an attacker to run malicious code on an affected system, according to Adobe's advisory. Users of Shockwave Player 11.5.7.609 and earlier versions for Windows and Mac are recommended to upgrade to the newest version, 11.5.8.612. The update resolves 20 vulnerabilities, including a number of memory corruption and denial-of service issues, along with an integer overflow flaw and a pointer offset bug. An estimated 200 million people have installed Shockwave. — AM