Description
The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination or corrupt kernel memory.
Published: 2026-09-14
Score: 6.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Kernel memory corruption leading to unexpected system termination
Action: Patch
AI Analysis

Impact

The issue originates from a memory handling flaw in macOS that allows an application to read or write outside the intended memory region, leading to kernel memory corruption. This corruption can trigger an unexpected system termination or crash. The weakness is reflected in CWE-119, which covers improper restriction of operations within the bounds of a memory buffer. The description does not state that the flaw can be leveraged for remote code execution or privilege escalation, so the impact is limited to loss of system availability.

Affected Systems

Apple macOS releases older than macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7 are vulnerable. The issue affects all installations of those operating systems that have not yet applied the patch, regardless of hardware configuration.

Risk and Exploitability

The CVSS score of 6.6 rates the vulnerability as moderate severity. The EPSS score of less than 1 percent indicates a very low probability of exploitation in the near term. The vulnerability does not appear in the CISA KEV catalog and no public exploits are known. The attack vector is not explicitly described, but the description indicates that an application running on the system may trigger the memory flaw. If successfully exploited, kernel memory corruption could lead to a system crash. The low exploitation probability and lack of a clear remote attack surface reduce urgency, but enterprises running affected macOS versions should apply the patch promptly.

Generated by OpenCVE AI on September 21, 2026 at 01:15 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update macOS to at least Golden Gate 27, Sequoia 15.8, or Tahoe 26.7, which include the memory‑handling fix.
  • Restrict execution of untrusted or third‑party applications to reduce the window for local exploitation.
  • Monitor system logs for abnormal crashes or kernel faults and investigate any evidence of memory corruption.

Generated by OpenCVE AI on September 21, 2026 at 01:15 UTC.

Tracking

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Advisories

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History

Mon, 21 Sep 2026 01:45:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Leading to System Crash in macOS

Sun, 20 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Leading to System Crash in macOS
Weaknesses CWE-125
CWE-787

Wed, 16 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Tue, 15 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H'}

ssvc

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


Tue, 15 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CWE-787

Tue, 15 Sep 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination or corrupt kernel memory.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-15T16:49:09.157Z

Reserved: 2026-09-01T21:13:17.750Z

Link: CVE-2026-84537

cve-icon Vulnrichment

Updated: 2026-09-15T16:49:03.829Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-14T21:17:30.167

Modified: 2026-09-16T17:16:09.763

Link: CVE-2026-84537

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T01:30:08Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer