SUSY Searches with Leptons at CMS

The results of searches for extensions of the Standard Model in the framework of Supersymmetry at the CMS experiment are presented, concentrating on final state signatures containing one or multiple leptons in combination with hadronic activity and missing transverse energy. All presented analyses are based on the full 2011 LHC dataset of 7 TeV pp collisions, corresponding to an integrated luminosity of $4.98~\mathrm{fb}^{-1}$. No excesses above expectations are observed and the results are interpreted as constraints on the parameter space of the Constrained Minimal Supersymmetric Standard Model and of signature specific simplified model scans.