Apple Security Advisory 2021-01-26-3 - watchOS 7.3 addresses a race condition vulnerability.
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APPLE-SA-2021-01-26-3 watchOS 7.3
watchOS 7.3 addresses the following issues. Information about the
security content is also available at
https://support.apple.com/HT212148.
Kernel
Available for: Apple Watch Series 3 and later
Impact: A malicious application may be able to elevate privileges.
Apple is aware of a report that this issue may have been actively
exploited.
Description: A race condition was addressed with improved locking.
CVE-2021-1782: an anonymous researcher
Additional details available soon.
Installation note:
Instructions on how to update your Apple Watch software are
available at https://support.apple.com/kb/HT204641
To check the version on your Apple Watch, open the Apple Watch app
on your iPhone and select "My Watch > General > About".
Alternatively, on your watch, select "My Watch > General > About".
This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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