CVE-2026-43656
Out-of-Bounds Write in Apple iOS and macOS
Publication date: 2026-05-11
Last updated on: 2026-05-11
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ios | 18.7.9 |
| apple | ipados | 18.7.9 |
| apple | ios | 26.5 |
| apple | ipados | 26.5 |
| apple | macos_sequoia | 15.7.7 |
| apple | macos_sonoma | 14.8.7 |
| apple | macos_tahoe | 26.5 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an out-of-bounds write issue that occurs due to insufficient input validation when parsing files. A specially crafted malicious file can trigger this flaw, potentially causing an application to terminate unexpectedly.
How can this vulnerability impact me? :
The primary impact of this vulnerability is that parsing a maliciously crafted file may cause an application to crash unexpectedly. This could lead to denial of service or disruption of normal application functionality.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Apple devices to the fixed versions: iOS 18.7.9, iPadOS 18.7.9, iOS 26.5, iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, or macOS Tahoe 26.5.