Opera Software on Monday issued Opera 10.10 (Opera Unite) which fixes an “extremely severe” heap buffer overflow vulnerability that could cause the browser to freeze or terminate or lead to a crash that could be used to execute code, Opera said. The updated browser also fixes a separate “highly severe” issue with scripting error messages that could allow cross-site scripting, as well as a “moderately severe” issue, of which details will be disclosed at a later date. — AM