Generic signatures of supersymmetry with R-parity conservation include those of single isolated muons or like-sign isolated dimuon pairs, accompanied with energetic jets and missing transverse energy. The ability of CMS to discover supersymmetry with these signals is estimated for 10 fb^-1 of data collected with the inclusive single-muon and dimuon high-level-trigger paths. The selection criteria are optimized and the systematic effects are studied for a single low-mass benchmark point of the constrained MSSM with m₀ = 60 GeV/c², m_1/2 = 250 GeV/c², \mathop {\mathgroup \symoperators tan}\nolimits \beta =10, A₀=0 and \mu >0. Discovery contours in the (m₀, m_1/2) plane are presented for integrated luminosities ranging from 1 to 100 fb^-1.

PACS numbers: 12.60.Jv, 14.80.Ly