Tech giants including Apple, Facebook and Twitter have suffered a series of cyber attacks from explosed flaws in Java software.
Oracle has rushed to fix a security fault on five vulnerabilities in Java 7, which has reportedly been exploited by hackers through Java's Web Start applications and applets.
The update, called Java 7 Update 15, will address four client-side vulnerabilities that could be exploited.
Oracle advises that these fixes be installed as soon as possible and desktop users can install the new version from java.com or through the Java autoupdate.
Oracle director of software assurance, Eric Maurice, said in a blogpost, "All but one of the vulnerabilities fixed today apply to client deployment of Java."
Additionally, the software firm is planning to launch emergency fixes in April 2013.
Apple reported that laptops used by some of its application developers had been targeted by hackers through a malicious code after they exploited a flaw in Java.
Similarly Twitter also reported attacks and revealed that hackers had reportedly stolen 250,000 user names and passwords.
Facebook also suffered from sophisticated attack but revealed that no member data was compromised.