Apple has disclosed serious security vulnerabilities for iPhones, iPads and Macs, which could potentially allow attackers to take complete control of devices.
Apple added that it is "aware of a report that this issue may have been actively exploited".
Security experts have advised users to urgently update affected devices - the iPhone 6S and later models, newer iPads, and Mac computers running macOS Monterey.
It also impacts some iPod models.
In a security update on its support page, Apple said one of the flaws means a malicious application "may be able to execute arbitrary code with kernel privileges" - which TechCrunch describes as meaning full access to the device.
TechCrunch reported that the other - a WebKit bug - could be exploited if a vulnerable device accessed or processed "maliciously crafted web content [that] may lead to arbitrary code execution".
The warning to users comes ahead of its traditional September launch of the latest iPhone - expected this year to be named the iPhone 14.


Dubai Customs ‘Green Corridor’ handles surge in trade amid shipping disruption
LVMH to sell Marc Jacobs to WHP Global, G-III as buyers raise $850 million
India caps duty-free gold imports for jewellery exporters to curb demand
Warsh wins confirmation as Fed chair, with inflation on the march
Dubai Taxi Company to acquire National Taxi
