CVE-2021-30900
HighActively exploited (CISA KEV)
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Apple iOS, iPadOS, and macOS
PublishedAug 24, 2021
First seenAug 24, 2021
Added to KEVMar 30, 2023
Weakness typeCWE-787Out-of-bounds write
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Apr 20, 2023Update
- apple ipados14.8.1 or later
- apple iphone_os14.8.1 or later
- apple macos11.6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 14.8.1, 15.0 | 14.8.1 |
| apple iphone_os | v < 14.8.1, 15.0 | 14.8.1 |
| apple macos | v < 11.6.1 | 11.6.1 |
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