CVE-2021-30869
HighActively exploited (CISA KEV)
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Apple iOS, iPadOS, and macOS
PublishedAug 24, 2021
First seenAug 24, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-843CWE-843
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Update
- apple ipados14.4 or later
- apple iphone_os12.5.5, 14.4 or later
- apple macos11.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 14.4 | 14.4 |
| apple iphone_os | 12.0 ≤ v < 12.5.5, 14.0 ≤ v < 14.4 | 12.5.5, 14.4 |
| apple mac_os_x | 10.14 ≤ v ≤ 10.14.6, 10.15 ≤ v ≤ 10.15.6, 10.14.6, 10.15.7 | — |
| apple macos | 11.0 ≤ v < 11.2 | 11.2 |
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