  We investigate the stability of the Standard Model vacuum with respect to
vacuum tunneling to the Komatsu vacuum, which exists when $m_L^2 +
m_{H_u}^2<0$, in the cMSSM. Employing the numerical tools SARAH, SPheno and
CosmoTransitions, we scan and constrain the parameter space of the cMSSM up to
10 TeV. Regions excluded due to having a vacuum tunneling half-life less than
the age of the observable universe are concentrated near the regions where the
Standard Model vacuum is tachyonic and are more stringent at smaller $m_0$,
larger and negative $A_0$, and larger $\tan\beta$. New excluded regions, which
satisfy $m_h \simeq 125 \text{GeV}$, are found.
