My only problem was that it broke nVidia’s graphics driver, like every OS X update does (though it’s strange this did since it wasn’t a full one), but in such a way that I couldn’t wake from sleep and had to hard restart. nVidia did an update today, though, so it’s fine now.
If you could post what your hardware is, that might help us narrow things down. Right now, I’d also suggest silly things that probably won’t do anything–like a reset of your PRAM and SMC. Hey, you never know.
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https://forums.macrumors.com/threads/security-update-2017-001-safari-spotlight-search-crashing.2092368/,
mine has not fixed itself. Sorry I'm no help, but I'm looking for answers same as you.
If you could post what your hardware is, that might help us narrow things down. Right now, I’d also suggest silly things that probably won’t do anything–like a reset of your PRAM and SMC. Hey, you never know.