This morning we've got two, one from Netscape and one from Microsoft. BetaNews is reporting that Netscape's SmartDownload has a security flaw that threatens the security of a user's computer. There is an update which may be downloaded, though. And on the IE front, Georgi Guninski is reporting yet another Active Scripting vulnerability in Internet Explorer. I could not find a search mechanism for the site.
Entries vary in length, sometimes just a few words and sometimes a few long paragraphs.
This site has really gone out of its way to cross-link its entries. It could really use a search function, but still worth a look. The first thing this site does is pop up a box asking to test your computer's multimedia for compatibility with the material on the site. I set my preferences manually and continue. There's an audio and video check and off you go.