CVE-2021-30902

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% 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-416

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.

Affected products

Apple Ipad Os: before 14.8.1 — fixed in 14.8.1
Apple iPadOS: 15.0
Apple Iphone Os: before 14.8.1; 15.0 — fixed in 14.8.1

How to fix

Upgrade to a fixed version: Apple Ipad Os 14.8.1; Apple Iphone Os 14.8.1. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT212867
https://support.apple.com/en-us/HT212868
https://support.apple.com/en-us/HT212867
https://support.apple.com/en-us/HT212868

Get alerted when CVE-2021-30902 or the next vulnerability affects your stack