CVE-2016-1823

Your device has a part that handles input reports (think “messages” from connected hardware). In older Apple OS versions, a specially prepared input report can make that handler behave incorrectly—either crashing the device or potentially allowing an attacker to run code with higher permissions.

A simple analogy: it’s like a lock that sometimes misreads a particular key shape—at best the door won’t open reliably (crash), and at worst the person who crafted the key may gain access (privileged code execution).

This matters if you run older Apple operating systems and your business uses the affected device types: iOS, OS X/macOS, tvOS, or watchOS.

The practical risk is mainly when an attacker can interact with the device via input/report handling (for example, through interactions with hardware/peripherals), and it’s higher when an attacker can reach the vulnerable interface on a real device.

This is AMBER because public exploit code exists for CVE-2016-1823. While it’s not confirmed in the CISA Known Exploited Vulnerabilities list, exploit availability means you should treat unpatched affected devices as actively worth fixing.

Prioritize updating any devices still on versions older than the fixed releases as soon as possible, and reduce exposure to untrusted peripherals/devices until patched.