CVE-2026-43653
Received Received - Intake
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
The issue was addressed with improved memory handling. This 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, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.
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Meta Information
Published
2026-05-11
Last Modified
2026-05-11
Generated
2026-06-21
AI Q&A
2026-05-12
EPSS Evaluated
2026-06-20
NVD
CVE-2026-43653
Affected Vendors & Products
Showing 7 associated CPEs
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
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

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.

Impact Analysis

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.

Mitigation Strategies

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.

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