Apple releases watchOS 7.6.1; fixes issue that may have been actively exploited

Apple on Thursday released watchOS 7.6.1, a minor update to the watchOS 7 operating system that was released in September 2020. watchOS 7.6.1 comes two weeks after the release of watchOS 7.6, which delivered ECG functionality to new regions.

watchOS 7 features seven new watch face options — including Chronograph Pro and GMT — plus new watch face configurations users can curate, discover, and share with others.
watchOS 7

According to Apple’s release notes, the watchOS 7.6.1 update includes important security updates and it is recommended for all users. An Apple security support document indicates that the update fixes a memory issue that may have been actively exploited in the wild, as with iOS 14.7.1, iPadOS 14.7.1, and macOS Big Sur 11.5.1.

Apple Support:

watchOS 7.6.1

Released July 29, 2021


Available for: Apple Watch Series 3 and later

Impact: An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.
Description: A memory corruption issue was addressed with improved memory handling.

CVE-2021-30807: an anonymous researcher

MacDailyNews Take: Applicable Apple Watch users should upgrade ASAP.

The free watchOS 7.6.1 operating system update can be downloaded through the dedicated Apple Watch app on the ‌iPhone‌ by going to General > Software Update.


  1. Watch updates are also possible directly by going to Settings app (on the watch), General, Software Update. It’s more convenient. And that stuff a few months ago about 8GB Series 3 needing to be unpaired and restored for each update (because not enough free space). That was nonsense from a blogger. This update installed normally. The previous two updates also installed fine for me with no special actions. It’s possible a big update, like next major release, will require unpairing and restoring. I think Apple has improved the Watch update process recently.

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