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 attacker 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 arises from inadequate memory handling within the macOS kernel, enabling an attacker to cause an unexpected system termination or corrupt kernel memory. This type of kernel corruption can result in a denial of service and may potentially expose the system to further compromise. The weakness is rooted in buffer handling and memory management flaws.

Affected Systems

Apple macOS versions released before Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6 are affected by this issue. All earlier builds of these operating system lines remain vulnerable until the patches are applied.

Risk and Exploitability

Based on the description, the advisory does not specify a precise exploitation context, but kernel memory corruption could theoretically be leveraged from both local and remote positions. The CVSS score of 9.8 denotes critical severity, indicating that a successful exploitation could terminate the system or expose it to additional attacks. The EPSS score is < 1 %, signalling a very low but nonzero probability of exploitation, and the vulnerability is not listed in CISA KEV.

Generated by OpenCVE AI on August 5, 2026 at 01:36 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to macOS Sequoia 15.7.8 or newer.
  • Upgrade to macOS Sonoma 14.8.8 or newer.
  • Upgrade to macOS Tahoe 26.6 or newer.

Generated by OpenCVE AI on August 5, 2026 at 01:36 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 05 Aug 2026 02:00:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Vulnerability in macOS Fixed by Improved Memory Handling

Wed, 05 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption Causing System Termination in Apple macOS
Weaknesses CWE-416

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

Type Values Removed Values Added
Title Kernel Memory Corruption Causing System Termination in Apple macOS
Weaknesses CWE-119
CWE-416
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Tue, 28 Jul 2026 01:45:00 +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 attacker may be able to cause unexpected system termination or corrupt kernel memory.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-07-28T13:45:11.204Z

Reserved: 2026-05-01T22:46:21.644Z

Link: CVE-2026-43710

cve-icon Vulnrichment

Updated: 2026-07-28T13:44:58.611Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-27T21:16:55.020

Modified: 2026-07-29T15:45:59.770

Link: CVE-2026-43710

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T01:45:04Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer