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2.2 GHz (Turbo Boost up to 3.4 GHz) or 2.5 GHz (Turbo Boost up to 3.7 GHz) quad-core Intel Core i7 processor with 6MB shared L3 cache.

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Is Catalina going to be patched against the zero days?

I currently run MacOS Catalina on my 2014 rMBP as it's the best balance of performance and compatibility, due to my HP LJ Pro M401n (the HP utility works in Catalina, but not tested in Big Sur; it basically acts in place of the EWS). This is the sole reason I still run Catalina this late in.

Due to the zero day, while I still run MBAM as secondary protection (I don't use normal AV, never had to on Mac) I'm a little concerned; I write a lot of these holes off as a non-concern you can solve with common sense antivirus but not quite this one.

Are we going to see a update for Catalina? I can go up to Big Sur, but I want to do it in a way I can back out with a TM backup and a Catalina USB drive.

Answered! View the answer I have this problem too

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Best to contact Apple as only they know! Besides, the more calls they get they may alter their direction.

Not all versions of an OS or app have the same security holes!! So while the older macOS's have been patched before the newer macOS's its possible the risk is within the newer OS's not the older!

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I had to wipe the machine and reinstall Catalina from USB due to other issues with the updates where I needed to frequently safe boot it, but apparently Apple caved on Cataina.

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As far as I am aware, the zero days which were patched in Monterey 12.5.1 only effect Monterey and iOS/iPadOS.

Per the article you linked:

The list of devices affected by both vulnerabilities are:

  • Macs running macOS Monterey
  • iPhone 6s and later
  • iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation).

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