The recent discovery of a 125 GeV Higgs-like resonance at LHC, coupled with the lack of evidence for weak scale supersymmetry (SUSY), has severely constrained SUSY models such as minimal supergravity (mSUGRA)/CMSSM. As LHC probes deeper into SUSY model parameter space, the little hierarchy problem---how to reconcile the $Z$ and Higgs boson mass scale with the scale of SUSY breaking---will become increasingly exacerbated unless a sparticle signal is found. We evaluate two different measures of fine-tuning in the mSUGRA/CMSSM model. The more stringent of these, ${\ensuremath{\Delta}}_{\mathrm{HS}}$, includes effects that arise from the high-scale origin of the mSUGRA parameters while the second measure, ${\ensuremath{\Delta}}_{\mathrm{EW}}$, is determined only by weak scale parameters: hence, it is universal to any model with the same particle spectrum and couplings. Our results incorporate the latest constraints from LHC7 sparticle searches, LHCb limits from ${B}_{s}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ and also require a light Higgs scalar with ${m}_{h}\ensuremath{\sim}123--127\text{ }\text{ }\mathrm{GeV}$. We present fine-tuning contours in the ${m}_{0}$ vs ${m}_{1/2}$ plane for several sets of ${A}_{0}$ and $\mathrm{tan}\ensuremath{\beta}$ values. We also present results for ${\ensuremath{\Delta}}_{\mathrm{HS}}$ and ${\ensuremath{\Delta}}_{\mathrm{EW}}$ from a scan over the entire viable model parameter space. We find a ${\ensuremath{\Delta}}_{\mathrm{HS}}\ensuremath{\gtrsim}{10}^{3}$, or at best 0.1%, fine-tuning. For the less stringent electroweak fine-tuning, we find ${\ensuremath{\Delta}}_{\mathrm{EW}}\ensuremath{\gtrsim}{10}^{2}$, or at best 1%, fine-tuning. Two benchmark points are presented that have the lowest values of ${\ensuremath{\Delta}}_{\mathrm{HS}}$ and ${\ensuremath{\Delta}}_{\mathrm{EW}}$. Our results provide a quantitative measure for ascertaining whether or not the remaining mSUGRA/CMSSM model parameter space is excessively fine-tuned and so could provide impetus for considering alternative SUSY models.