Opera Software has released version 11.01 of the Opera web browser for Windows, Mac, and Unix to address multiple vulnerabilities. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code, cause a denial-of-service condition, bypass security restrictions, or obtain sensitive information.
US-CERT encourages users and administrators to review the changelog for version 11.01 of the Opera web browser and update to Opera 11.01 to mitigate the risks.