CVE-2026-43656
High
Description
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Apple Ipados
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- apple ipados18.7.9, 26.5 or later
- apple iphone_os18.7.9, 26.5 or later
- apple macos14.8.7, 15.7.7, 26.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 18.7.9, 26.0 ≤ v < 26.5 | 18.7.9, 26.5 |
| apple iphone_os | v < 18.7.9, 26.0 ≤ v < 26.5 | 18.7.9, 26.5 |
| apple macos | 14.0 ≤ v < 14.8.7, 15.0 ≤ v < 15.7.7, 26.0 ≤ v < 26.5 | 14.8.7, 15.7.7, 26.5 |
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