Hi Aravind,
The version you are using is well behind the support window Mendix offers.
Have a look at this documentation page: https://docs.mendix.com/releasenotes/studio-pro/lts-mts#lts
Figuring out what the vulnarabilities are, will probably be a tough job, but there won't be any platform support on it as far as I know.
Is upgrading to a newer Mendix version in the 7.23.x range or higher an option for you?