CVE-2026-43793
Received Received - Intake

Unexpected System Termination in macOS

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description
An issue existed in the handling of environment variables. This issue was addressed with improved validation. 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 cause unexpected system termination.

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Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-43793
EUVD
EUVD-2026-49557

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
apple macos_sequoia 15.7.8
apple macos_sonoma 14.8.8
apple macos_tahoe 26.6

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves improper handling of environment variables, which could allow an app to cause unexpected system termination. It was addressed with improved validation in specific macOS versions.

Impact Analysis

An attacker could exploit this to crash your system unexpectedly by manipulating environment variables. This may lead to data loss or disruption of services if not patched.

Mitigation Strategies

Update to the latest patched versions of macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6 to address the environment variable handling issue.

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