CVE-2021-30883: Apple Multiple Products Memory Corruption Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-05-23. EPSS: 14.7% chance of exploitation in the next 30 days.

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. 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..

Affected products

• Apple iPadOS: before 14.8.1 (fixed in 14.8.1); from 15.0, before 15.0.2 (fixed in 15.0.2)
• Apple iPhone OS: before 14.8.1 (fixed in 14.8.1); from 15.0, before 15.0.2 (fixed in 15.0.2)
• Apple macOS: from 11.0, before 11.6.1 (fixed in 11.6.1); version 12.0 only
• Apple tvOS: before 15.1 (fixed in 15.1)
• Apple watchOS: before 8.1 (fixed in 8.1)

Published 2021-08-24. Last modified 2026-06-17.