The best available measurements and theory suggest that given the mass of the Higgs boson and the running of various Standard Model physics parameters with energy scale, that the vacuum is only "metastable" and has a tiny probability of collapsing and ending the universe as we know it. But events like this are likely to happen only once in a period of time that is significantly longer than the current age of the universe.
A new preprint looks at whether ultra-high energy cosmic rays or particle collider concentrations of energy could trigger such a vacuum collapse.
Fortunately for us, the bottom line is that we are safe from that happening. We are many orders of magnitude in energy scales below the danger zone.