CVE-2026-84539

CriticalCVSS 9.8/10Last modified Nov 4, 2026

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7.2. An app may be able to cause unexpected system termination.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
ApplemacOS< 26.7.2; < 27

References

Timeline

Published
Oct 26, 2026
Last modified
Nov 4, 2026
NVD status
Analyzed

Related CVEs from 2026

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CVE-2026-84539: Critical severity, CVSS 9.8 | Vulnix