7.8
High
CVE-2026-43776 A buffer overflow was addressed with improved bounds checking
Description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| iOS and iPadOS 26.6 | earliest → < 26.6 | 26.6 |
| iOS and iPadOS 18.7 | earliest → < 18.7.10 | 18.7.10 |
| macOS 26.6 | earliest → < 26.6 | 26.6 |
| macOS 15.7 | earliest → < 15.7.8 | 15.7.8 |
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