Apple Releases Safari 15.6.1 for macOS Big Sur and macOS Catalina With Important Security Fix

Apple today released Safari version 15.6.1 for the older macOS Big Sur and macOS Catalina operating systems. The update includes an important security fix for a WebKit vulnerability that could lead to arbitrary code execution, according to Apple.

safari icon blue banner
Apple said it is aware of a report that the WebKit vulnerability may have been actively exploited, so updating Safari is highly recommended.

Apple released macOS Monterey 12.5.1, iOS 15.6.1, and iPadOS 15.6.1 yesterday with fixes for both WebKit and kernel vulnerabilities. As noted by Mr. Macintosh on Twitter, a fix for the kernel-related vulnerability has yet to be released for macOS Big Sur or macOS Catalina, but it's unclear if that vulnerability affects those operating systems.

Tag: Safari

Popular Stories

Apple Announces Special Event in New York Feature

Apple Announces Special Event in New York, London, and Shanghai on March 4

Monday February 16, 2026 6:05 am PST by
Apple today announced a "special Apple Experience" in New York, London, and Shanghai, taking place on March 4, 2026 at 9:00am ET. Apple invited select members of the media to the event in three major cities around the world. It is simply described as a "special Apple Experience," and there is no further information about what it may entail. The invitation features a 3D Apple logo design...
M3 iPad Air

Apple's Next Two Products Are Coming Soon

Thursday February 12, 2026 11:17 am PST by
Apple plans to release an iPhone 17e and an iPad Air with an M4 chip "in the coming weeks," according to the latest word from Bloomberg's Mark Gurman. "Apple retail employees say that inventory of the iPhone 16e has basically dried out and the iPad Air is seeing shortages as well," said Gurman. "I've been expecting new versions of both (iPhone 17e and M4 iPad Air) in the coming weeks."...
Apple Sales Coach App

Apple Launching New 'Sales Coach' App

Friday February 13, 2026 2:01 pm PST by
Apple plans to launch a rebranded "Sales Coach" app on the iPhone and iPad later this month, according to a source familiar with the matter. "Sales Coach" will arrive as an update to Apple's existing "SEED" app, and it will continue to provide sales tips and training resources to Apple Store and Apple Authorized Reseller employees around the world. For example, there are articles and videos...
Coffee Burgundy and Purple iPhone 18 Pro Mock

Five iPhone 18 Pro Features Revealed in New Report

Friday February 13, 2026 8:43 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are still seven months away, an analyst has revealed five new features the devices will allegedly have. Rumored color options for the iPhone 18 Pro models In a research note with investment firm GF Securities on Thursday, analyst Jeff Pu outlined the following upgrades for the iPhone 18 Pro models: Smaller Dynamic Island: It has been rumored...
iOS 26 Home Feature

Three New Apple Home Products Rumored for 2026

Friday February 13, 2026 4:18 pm PST by
Apple has a long list of new products rumored for 2026, including a series of home products that will see the company establishing more of a presence in the smart home space. Robots are on the horizon for 2027, but the 2026 releases will be a little tamer. HomePod mini We're expecting a new HomePod mini 2 to launch at any time. Apple isn't going to update the device's design, but we could...

Top Rated Comments

glsillygili Avatar
46 months ago
I wish Apple would make Safari on iOS a standalone app so it can be updated independently of iOS
Score: 33 Votes (Like | Disagree)
Shh Avatar
46 months ago

I wish Apple would make Safari on iOS a standalone app so it can be updated independently of iOS
All of their apps should be that way like it is on Android.
Score: 17 Votes (Like | Disagree)
46 months ago

I thought theoretically they had separated most of the core apps, but I still don’t recall ever seeing an update for them outside of a full OS release or point release.

And yet they still choose certain apps that can’t be uninstalled. On the iPhone I can’t think of anything that can’t be uninstalled except maybe App Store itself, but on watch and Mac ironically News for example is there to stay, like it or not.
Exactly. Shutting the whole system down for an hour to update some minor chunk of code in Safari is atrocious design.
Score: 6 Votes (Like | Disagree)
46 months ago

Exactly. Shutting the whole system down for an hour to update some minor chunk of code in Safari is atrocious design.
An hour? This latest update took 5 minutes.
Score: 6 Votes (Like | Disagree)
ccsicecoke Avatar
46 months ago
Fix that in 10.9 Mavericks too!
Score: 5 Votes (Like | Disagree)
46 months ago

Your post makes absolutely zero sense. The benefit is we would get app updates immediately when there are issues instead of having to wait for an entire iOS update to get them. There wouldn’t be a million different configurations, it would be exactly the same as it is now. Apps could just be updated at the same time, just like iOS updates are updated at the same time.
You’re missing my point. In your scenario, you might have a user on iOS 15.1.3, Safari 16.0.3 and Music 12.9.3 etc. It will entirely depend on the user which apps and updates they have. So yes, you could end up with many different configurations. And bugs as a result because an issue might arise with a very specific combination. it’s much much harder for Apple to support this approach.

In the current scenario, people do get the latest update when there’s an issue fixed. there’s zero proof updates are delayed . And what do you care if a specific update only contains Safari, or part of the core framework, or some other fixes or an update for the entire OS.

It’s very well possible an update only touches on Safari components, so essentially it’s just a safari update and not “an entire iOS update”.
Score: 5 Votes (Like | Disagree)