Presuming that this was in fact a cruise missile attack and not an on board fire as the Russian news release asserts:
The aviation, or perhaps aerospace, question I have is how Ukraine's missile system (allegedly Neptun) got cueing and targeting information on a ship at sea when their own maritime assets are in poor shape.
I'll toss out a guess: drone/UAV got a good enough "AoP" for the
Moskva and they let loose with a few Neptun's.
There, we have aviation content related to the OP.
Nostalgia moment: when we were doing FoN ops in the black sea back in '85, we were, shadowed/escorted by three Soviet Navy ships as we did our "right on the 12 mile limit" transits.
A Krivak frigate, a Udaloy destroyer, and the Slava (CG). She was fairly new then, and was a real beauty to behold.
Our helicopter detachment was not allowed to fly during that transit. We had to stay on the ship for various political reasons. We took a lot of pictures of our escorts, which were of course all turned into the ship's INT officer.
Our little flotilla was overflown by a Backfire at fairly low altitude. Loud, that was.