V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CSM
       Compatibility Support Module (UEFI)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CSM
       Certified Scrum Master (Scrum)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CSM
       Cluster System Management (IBM)


The Free On-line Dictionary of Computing (30 December 2018):

CSM

   ["CSM - A Distributed Programming Language", S. Zhongxiu et
   al, IEEE Trans Soft Eng SE-13(4):497-500 (Apr 1987)].