The issue was addressed with improved bounds checks. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. 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..
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Threat Source newsletter (Sept. 15, 2022) — Teachers have to be IT admins now, too
Threat Source newsletter (Oct. 27, 2022): I thought we were already aware of supply chain attacks?
macOS 12.x < 12.6 (HT213444)
macOS 11.x < 11.7 (HT213443)
Apple Releases iOS and macOS Updates to Patch Actively Exploited Zero-Day Flaw
Apple Releases Patch for New Actively Exploited iOS and iPadOS Zero-Day Vulnerability
[updated] Important update! iPhones, Macs, and more vulnerable to zero-day bug
About the security content of iOS 16