Out-of-Bounds Read Vulnerability in Apple's macOS Products
CVE-2026-43747

Currently unrated

Key Information:

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

What is CVE-2026-43747?

An out-of-bounds read vulnerability has been discovered in Apple's macOS products. This flaw arises from inadequate bounds checking, making it possible for a maliciously crafted file to cause unexpected application termination when parsed. Users are encouraged to update their systems to the latest versions—macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6—to mitigate potential risks associated with this vulnerability.

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-2026-43747 Data

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