No there is no MSI Package for cumulative patches.
Cumulative patch could be installed :
Manually using applyptf.exe tool Example : APPLYPTF.exe /NODE=<machine name> /PTF=99112084.jcl /INSTALLNEW /SILENT /OUTPUTFILE=applyptf.log
or
using the provided SD Package. Example : CA DSM Agent + Explorer + Scalability Server 14.5 CU7 (Win32 only) - 14.5.7.632
Example of command line executed by the SD Package : DeployWrapper.exe /INST ApplyPtfInstall /PTF=99112084.jcl /SILENT /INSTALLNEW /OUTPUTFILE=applyptf.log