CVE-2026-43653
Memory Corruption Denial-of-Service 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 | macos_sonoma | 14.8.7 |
| apple | macos_tahoe | 26.5 |
| apple | tvos | 26.5 |
| apple | ios | 26.5 |
| apple | ipados | 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 involves an issue with memory handling that has been improved in recent updates. It affects multiple Apple operating systems including iOS, iPadOS, macOS Sonoma, macOS Tahoe, and tvOS. An attacker on the local network may exploit this vulnerability to cause a denial-of-service condition.
How can this vulnerability impact me? :
The primary impact of this vulnerability is that an attacker on the local network could cause a denial-of-service, potentially disrupting the normal operation of affected Apple devices.
What immediate steps should I take to mitigate this vulnerability?
The issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sonoma 14.8.7, macOS Tahoe 26.5, and tvOS 26.5.
To mitigate this vulnerability, you should update your Apple devices to these fixed versions as soon as possible.