Microsoft has warned of three flaws affecting its software, the most serious of which would allow an attacker to gain full control of a PC using Java applets.

The most serious of the security holes "could enable an attacker?s Java applet to gain control over another user?s system," according to the alert. "This would enable the attacker to take any ...

Oracle will release a new version of Java on Tuesday that will include 42 security fixes and will make changes to how Web-based Java content will be presented inside browsers.

In an effort to draw attention to an long-standing security problem in Apple's Mac OS X operating system, a security researcher has posted attack code that exploits the flaw.