I believe this could be the system that is referred to in the above Tick Tock
Ground-Launched Small Diameter Bomb Would Double Ukraine’s Precision Strike Range
Ukraine’s next long-range precision strike weapon could be the Ground-Launched Small Diameter Bomb, or GLSDB, with the Pentagon now apparently considering a Boeing proposal to supply Kyiv with the munition. The recently developed GLSDB, an adaptation of the widely used air-launched Small Diameter Bomb, or SDB, has not previously found a customer but would provide a significant boost to Ukraine’s capacity to strike in Russian rear areas.
https://www.thedrive.com/the-war-zone/ground-launched-small-diameter-bomb-would-double-ukraines-precision-strike-range