CVE-2021-30894

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% 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-787

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1, tvOS 15.1. An application may be able to execute arbitrary code with kernel privileges.

Affected products

Apple iPadOS: before 15.1 — fixed in 15.1
Apple Iphone Os: before 15.1 — fixed in 15.1
Apple tvOS: before 15.1 — fixed in 15.1

How to fix

Upgrade to a fixed version: Apple iPadOS 15.1; Apple Iphone Os 15.1; Apple tvOS 15.1. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT212867
https://support.apple.com/en-us/HT212876
https://support.apple.com/en-us/HT212867
https://support.apple.com/en-us/HT212876

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