  We compute the Renormalized Stress-Energy Tensor (RSET) of a massless
minimally coupled scalar field in the Regularized Polyakov approximation, as
well as its backreaction, on the classical Reissner-Nordstr\"om spacetime. The
complete set of solutions of the semiclassical self-consistent equations is
obtained and compared with the classical counterparts. The semiclassical
Reissner-Nordstr\"om family involves three kinds of geometries that depend on
the charge-to-mass ratio of the spacetime. In the under-charged regime, the
geometry has its external horizon replaced by a wormhole neck that leads to a
singular asymptotic region at finite proper distance. The over-charged regime
reveals a naked singularity coated by a cloud of (infinite) mass coming from
the quantized field. In between both behaviours there is a separatrix solution
reminiscent of the extremal black hole classical geometry. As the RSET over an
extremal horizon is finite, the semiclassical backreaction does not get rid of
the horizon. Nonetheless, we show that the resulting horizon is singular.
