Out-of-Bounds Read Vulnerability in Apple Operating Systems
CVE-2026-43655

Currently unrated

Key Information:

Vendor: Apple
Status: iOS And iPad OS; Mac OS; TV OS; Watch OS
Vendor: CVE Published:; 11 May 2026

What is CVE-2026-43655?

This vulnerability allows an application to perform out-of-bounds read operations, potentially leading to unexpected system termination or unauthorized access to kernel memory. Apple has resolved this issue in the latest updates for its operating systems, enhancing their security by implementing improved bounds checking.

Affected Version(s)

iOS and iPadOS 0 < 26.5

macOS 0 < 26.5

tvOS 0 < 26.5

References

https://support.apple.com/en-us/127110

https://support.apple.com/en-us/127115

https://support.apple.com/en-us/127118

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Timeline

Vulnerability published
May 11, 2026
Vulnerability Reserved
May 1, 2026

CVE-2026-43655 Data

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