Microsoft Silverlight 5 before 5.1.30214.0 and Silverlight 5 Developer Runtime before 5.1.30214.0 allow attackers to bypass the DEP and ASLR protection mechanisms via unspecified vectors, aka "Silverlight DEP/ASLR Bypass Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-014