Tested and confirmed on Opera 9.00 built 8482. Interesting this also managed to crash Notepad.exe on Windows XP SP2 Home Edition when viewing the source of the page in IE7 Beta 2. Darren Clarke IT / Comms Admin --------------------------------------------------------------------- Critical Security advisory #009 [http://www.critical.lt] Advisory can be reached: http://www.critical.lt/?vuln/349 We are: N9, bigb0u, cybergoth, iglOo, mircia, Povilas Shouts to Lithuanian girlz! and our friends ;] Product: Opera 9 (8.x is immune to this) Vuln type: Denial of Service Risk: moderated Attack type: Remote Details: Vulnerability can be exploited by using a large value in a href tag to create an out-of-bounds memory access. Proof Of Concept DoS exploit: http://www.critical.lt/research/opera_die_happy.html Research was originaly done by Povilas Tumėnas a.k.a. N9 P.S. To Opera Team, we like your browser and want it to be as good as possible.