The pursuit of beyond the standard model (BSM) physics searches with prompt signatures has been a prominent aspect of the physics program at the LHC. Here we report recent results obtained by the CMS experiment on searches for dark matter (DM) and its light mediators, as well as BSM vector bosons using prompt signatures. These results benefit from the large amount of data at $\sqrt{s} = 13$ TeV collected during the Run 2 of the LHC between 2016 and 2018, as well as the incorporation of advanced machine learning techniques and innovative data acquisition strategies.
The data agree with the SM predictions in all the reported searches. Stringent or best upper limits to date are set for a variety of benchmark signal cross sections.