Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause unexpected system termination.
Published: 2026-09-14
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: Remote system termination (Denial of Service)
Action: Immediate patch
AI Analysis

Impact

An out-of-bounds read was identified in macOS, leading to a vulnerability that could allow a remote attacker to cause unexpected system termination. The flaw is a classic buffer read beyond the boundary, classified as CWE‑125, and can destabilize the operating system without requiring user interaction.

Affected Systems

Apple macOS systems running pre‑release versions prior to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 are impacted. The vulnerability was addressed in those releases and later.

Risk and Exploitability

The CVSS score of 7.5 indicates a high severity while the EPSS score is currently unavailable, making the exact exploitation probability uncertain. The vulnerability appears to be remotely exploitable, as a remote attacker may trigger a crash by manipulating the input that leads issue is not listed in the CISA KEV catalog, publicly known exploits have not yet been confirmed, but the impact remains significant for affected systems.

Generated by OpenCVE AI on September 15, 2026 at 10:39 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to the latest macOS release that includes the bounds‑checking fix (macOS Golden Gate 27, Sequoia 15.8, Tahoe 26.7 or later).
  • Restart the computer after the upgrade to activate the patch.
  • Maintain regular backups and monitor system logs for unexpected terminations.

Generated by OpenCVE AI on September 15, 2026 at 10:39 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 15 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Read Causing Potential Remote System Termination on macOS

Tue, 15 Sep 2026 01:30:00 +0000

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

Mon, 14 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Type Values Removed Values Added
Description An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause unexpected system termination.
References

Subscriptions

Apple Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-14T22:56:27.649Z

Reserved: 2026-07-22T00:46:06.182Z

Link: CVE-2026-65364

cve-icon Vulnrichment

Updated: 2026-09-14T22:56:18.212Z

cve-icon NVD

Status : Received

Published: 2026-09-14T21:17:21.393

Modified: 2026-09-14T23:17:19.960

Link: CVE-2026-65364

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T10:45:09Z

Weaknesses