Medium severity5.5NVD Advisory· Published Jul 27, 2026· Updated Jul 29, 2026

CVE-2026-43774

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to access sensitive user data.

Affected products

Apple Inc./macOS
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Range: >=14.0,<14.8.8
Apple Inc./macOS Sequoiallm-fuzzy
Range: 15.7.8
Apple Inc./macOS Sonomallm-fuzzy
Range: 14.8.8
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/128072nvdRelease NotesVendor Advisory

News mentions

ThreatsDay: Gogs 10.0 RCE, n8n Workflow-to-RCE, $10M Reward, GLM-5.3 AI Exploit, and More
The Hacker News · Aug 20, 2026
Apple Patches Everything (July 2026), (Wed, Jul 29th)
SANS Internet Storm Center · Jul 29, 2026

cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000