Critical severity9.8NVD Advisory· Published Jul 27, 2026· Updated Sep 14, 2026

CVE-2026-43748

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Apple Inc./macOS
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Range: >=15.0,<15.7.8
Apple Inc./iOSllm-fuzzy
Range: 26.6
Apple Inc./Ipadosllm-fuzzy
Range: 26.6
Apple Inc./macOS Sequoiallm-fuzzy
Range: 15.7.8
Apple Inc./macOS Tahoellm-fuzzy
Range: 26.6

Patches

Vulnerability mechanics

References

support.apple.com/en-us/128067nvdRelease NotesVendor Advisory
support.apple.com/en-us/128071nvdRelease NotesVendor Advisory
support.apple.com/en-us/128066nvd

News mentions

Apple Patches Everything (July 2026), (Wed, Jul 29th)
SANS Internet Storm Center · Jul 29, 2026

cvss	0.637
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000