CVE-2026-43690

Published Sep 14, 2026 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Description
A race condition was addressed with improved locking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A local user may be able to read kernel memory.

Analysis

AI-generated

Technical impact

A race condition was discovered in the kernel memory handling of macOS. The flaw permits a local user to read portions of kernel memory that should remain protected, potentially exposing sensitive data. Based on the description, it is inferred that this local memory disclosure could be used as a stepping stone for privilege escalation, since kernel memory holds privileged information.

Affected Systems

Apple’s macOS versions before macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7 are affected. Any release at or newer than those contains the fixing locking changes and removes the race condition.

Risk and Exploitability

The EPSS score is < 1 % and the vulnerability is not listed in CISA KEV. The CVSS score is 4.7. Based on the description, it is inferred that because the condition is local, exploitation requires physical or authorized user access. If achieved, the attacker can read kernel memory and potentially elevate privileges. The low EPSS indicates low public exploitation likelihood, but the impact remains high if locally exploited.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest macOS update (Golden Gate 27, Sequoia 15.8, Tahoe 26.7 or later).
  • If an immediate update is not possible, disable unnecessary privileged tools to reduce the attack surface.
  • Monitor system logs for unexpected kernel memory reads and enforce strict access controls on administrative utilities.
  • Restrict local user access to kernel memory by enforcing SIP and disabling unused kernel extensions.

Generated by OpenCVE AI on September 20, 2026 at 18:58 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Race Condition Allowing Local User to Read Kernel Memory
Type Values Removed Values Added
Title Race Condition Allowing Local User to Read Kernel Memory
Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Weaknesses CWE-362
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
Title Race Condition Allowing Local Kernel Memory Disclosure in macOS
Weaknesses CWE-200
CWE-362
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Race Condition Allowing Local Kernel Memory Disclosure in macOS
Weaknesses CWE-200
CWE-362
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description A race condition was addressed with improved locking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A local user may be able to read kernel memory.
References
Weaknesses
  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:44 PM
Reserved
May 1, 2026, 10:46 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Sep 17, 2026, 11:42 AM