CVE-2021-30659

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-08 · updated 2026-06-17

Description

A validation issue was addressed with improved logic. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, macOS Big Sur 11.3. A malicious application may be able to leak sensitive user information.

Affected products

Apple iPadOS: before 14.5 — fixed in 14.5
Apple Iphone Os: before 14.5 — fixed in 14.5
Apple macOS: from 11.0 before 11.3 — fixed in 11.3
Apple watchOS: before 7.4 — fixed in 7.4

How to fix

Upgrade to a fixed version: Apple iPadOS 14.5; Apple Iphone Os 14.5; Apple macOS 11.3; Apple watchOS 7.4. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT212317
https://support.apple.com/en-us/HT212324
https://support.apple.com/en-us/HT212325
https://support.apple.com/en-us/HT212317
https://support.apple.com/en-us/HT212324
https://support.apple.com/en-us/HT212325

Get alerted when CVE-2021-30659 or the next vulnerability affects your stack