CVE-2026-43779

macOS Logic Bug Allows Unauthorized Interception of Network Connections

Published Jul 27, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
A logic issue was addressed with improved restrictions. 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 intercept network connections intended for another process.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title macOS Logic Bug Allows Unauthorized Interception of Network Connections
Type Values Removed Values Added
Title Inter‑Process Network Traffic Interception via Logic Issue
Weaknesses CWE-732
Type Values Removed Values Added
Title Inter‑Process Network Traffic Interception via Logic Issue
Weaknesses CWE-732
Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description A logic issue was addressed with improved restrictions. 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 intercept network connections intended for another process.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Jul 28, 2026, 3:07 PM
Reserved
May 1, 2026, 10:46 PM
Status
Analyzed
Published
Jul 27, 2026, 9:17 PM
Modified
Oct 24, 2026, 1:10 PM