CVE-2026-20621
Medium
Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Apple Ipados
PublishedFeb 11, 2026
First seenFeb 11, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- apple ipados26.3 or later
- apple iphone_os26.3 or later
- apple macos14.8.4, 15.7.4, 26.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 26.3 | 26.3 |
| apple iphone_os | v < 26.3 | 26.3 |
| apple macos | v < 14.8.4, 15.0 ≤ v < 15.7.4, 26.0 ≤ v < 26.3 | 14.8.4, 15.7.4, 26.3 |
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