Already last week Opera released version 10.01 of its Web Browser. It closes some security holes. At least one of them can lead to code injection (for example to infect the computer with a Trojan). Users are advised to install the new version fast.
Meanwhile, the Mozilla Foundation has updated Firefox to version 3.5.5. The developers only mention stability fixes, this release doesn’t seem to fix security issues. Anyhow it is a good idea to install the update.
There was another security Update for Sun Java. Version 6 Update 17 fixes a lot of security vulnerabilities. Those flaws may lead to remote code execution, thus updating immediately is recommended.
What else? Adobe has released Shockwave Player 126.96.36.1992 which also closes security holes in the software which allow for remote malware injection. Users of the Shockwave Player (which is different from Adobe Flash Player) should also update their software immediately.
Today also Google released an update for its Chrome browser. It fixes 2 security problems which put users at risk.