Out-of-Bounds Read Vulnerability in Apple macOS Products
CVE-2026-43757

Currently unrated

Key Information:

Vendor: Apple
Status: Mac OS
Vendor: CVE Published:; 27 July 2026

What is CVE-2026-43757?

An out-of-bounds read vulnerability in Apple’s macOS could allow applications to access memory outside their allocated bounds, potentially leading to unexpected system terminations. This vulnerability has been addressed through enhanced bounds checking in the updated versions of macOS. Users are strongly advised to update to macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6 to mitigate this risk.

Affected Version(s)

macOS 0 < 14.8.8

macOS 0 < 15.7.8

macOS 0 < 26.6

References

https://support.apple.com/en-us/128067

https://support.apple.com/en-us/128071

https://support.apple.com/en-us/128072

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jul 27, 2026
Vulnerability Reserved
May 1, 2026

CVE-2026-43757 Data

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