CVE-2026-43771

Stack Overflow in macOS Causing Denial of Service

Published Jul 27, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
A stack overflow was addressed with improved input 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 a denial-of-service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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Title Stack Overflow in macOS Causing Denial of Service
Type Values Removed Values Added
Title Stack Overflow Causing Denial of Service in macOS
Weaknesses CWE-20
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Title Stack Overflow Causing Denial of Service in macOS
Weaknesses CWE-20
Type Values Removed Values Added
Title Stack Overflow Leading to Denial of Service in macOS
Weaknesses CWE-120
Type Values Removed Values Added
Title Stack Overflow Leading to Denial of Service in macOS
Weaknesses CWE-120
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First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description A stack overflow was addressed with improved input 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 a denial-of-service.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Jul 28, 2026, 1:39 PM
Reserved
May 1, 2026, 10:46 PM
Status
Analyzed
Published
Jul 27, 2026, 9:17 PM
Modified
Oct 24, 2026, 1:10 PM