Vector Boson Scattering results from CMS

The ultimate test of the Higgs mechanism in Electroweak Symmetry Breaking (EWSB) lies in the vector boson scattering (VBS) processes.~In this contribution, we present recent vector boson scattering measurements involving $W$, $Z$ and photon combinations in proton-proton collisions at the LHC.~The data samples are collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC.~The analyses are performed in the fully leptonic final states.~Recent results related to same sign $WW$, $WZ$, polarized $WW$, $ZZ$ and $W\gamma$ scattering are discussed.