Oracle released another Java fix to patch the vulnerabilities uncovered this week. The company advises all users to install the security patch as soon as possible considering the severity of these vulnerabilities This particular update addresses a vulnerability known as CVE-2013-1493 (US-CERT VU#688246) The issue affects Java versions 1.5 Update 40, 1.6 Update 41 and 1.7 Update 15. High profile targets such as Twitter, Facebook and Apple have already experienced the perils of these bugs being actively exploited by criminals.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/emergency-java-security-patch-update-now/