CVE-2021-30996

Severity: high (CVSS 7.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-24 · updated 2026-06-17
Weakness: CWE-362

Description

A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected products

Apple iPadOS: before 15.2 — fixed in 15.2
Apple Iphone Os: before 15.2 — fixed in 15.2
Apple macOS: before 12.1 — fixed in 12.1

How to fix

Upgrade to a fixed version: Apple iPadOS 15.2; Apple Iphone Os 15.2; Apple macOS 12.1. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT212976
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212976
https://support.apple.com/en-us/HT212978

Get alerted when CVE-2021-30996 or the next vulnerability affects your stack