Description
The issue was addressed with improved memory handling. 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 unexpected system termination or corrupt kernel memory.
Published: 2026-07-27
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a bounds‑checking failure (CWE‑119) that allows a local application to trigger unexpected system termination or corrupt kernel memory, undermining system integrity and creating a denial‑of‑service condition.

Affected Systems

Apple macOS installations prior to the release of macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6 are affected.

Risk and Exploitability

The CVSS score is 9.8 and the EPSS score is < 1%, indicating a very low probability of exploitation. The vulnerability is not listed in CISA KEV. The attack vector is inferred to be local, requiring a vulnerable application to exercise the flawed memory handling path. The flaw can cause kernel memory corruption leading to unexpected system termination.

Generated by OpenCVE AI on August 13, 2026 at 10:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest macOS release that contains the memory‑handling fix (macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6).
  • Monitor the system for kernel panics or unexpected shutdowns and restrict user access if the vulnerability remains unpatched.
  • Enable automatic macOS updates to ensure that critical security patches are applied promptly.

Generated by OpenCVE AI on August 13, 2026 at 10:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 13 Aug 2026 11:15:00 +0000

Type Values Removed Values Added
Title Memory Handling Vulnerability Allowing Kernel Corruption and System Termination in macOS

Tue, 04 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Title Memory Handling Vulnerability Allowing Kernel Corruption and System Termination in macOS

Mon, 03 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Leading to System Crash
Weaknesses CWE-122

Tue, 28 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Leading to System Crash
Weaknesses CWE-122

Tue, 28 Jul 2026 04:15:00 +0000

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

Mon, 27 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. 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 unexpected system termination or corrupt kernel memory.
References

Subscriptions

Apple Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-07-28T13:33:35.932Z

Reserved: 2026-07-20T18:09:01.158Z

Link: CVE-2026-64697

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-07-27T21:17:09.393

Modified: 2026-07-28T17:58:07.833

Link: CVE-2026-64697

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T11:00:12Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer