Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.
Published: 2026-08-17
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Kernel memory corruption leading to unexpected system termination
Action: Patch
AI Analysis

Impact

The vulnerability is a kernel memory handling flaw on several Apple operating systems, classified as a buffer overflow (CWE-119). It can be triggered by an application, allowing potential corruption of kernel memory or unexpected system termination. The issue was addressed with improved memory handling and is fixed in iOS 26.6.1, iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, and watchOS 27. Although the description does not explicitly mention confidentiality impact, corrupting kernel structures could lead to privilege escalation or denial of service.

Affected Systems

Affected are Apple’s iOS and iPadOS systems running any version prior to 26.6.1, macOS Sequoia releases before 15.8, macOS Tahoe releases before 26.6.2, and the corresponding tvOS, visionOS, and watchOS versions earlier than 27. These operating system versions are present on iPhones, iPads, and Mac computers that have not applied the latest security fixes.

Risk and Exploitability

The CV medium severity. The EPSS score of less than 1% suggests a low likelihood of exploitation. The vulnerability is not yet listed in the CISA KEV catalog. Based on the description, it is inferred that the likely attack vector is via an application that a user installs or runs. No public exploit.

Generated by OpenCVE AI on September 21, 2026 at 06:57 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade iOS to version 26.6.1 to fix the kernel memory handling flaw.
  • Upgrade iPadOS to version 26.6.1 to fix the kernel memory handling flaw.
  • Upgrade macOS Sequoia to version 15.8 to fix the kernel memory handling flaw.
  • Upgrade macOS Tahoe to version 26.6.2 to fix the kernel memory handling flaw.
  • Upgrade tvOS to version 27 to fix the kernel memory handling flaw.
  • Upgrade visionOS to version 27 to fix the kernel memory handling flaw.
  • Upgrade watchOS to version 27 to fix the kernel memory handling flaw.

Generated by OpenCVE AI on September 21, 2026 at 06:57 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 21 Sep 2026 07:15:00 +0000

Type Values Removed Values Added
Title Kernel memory corruption via buffer overflow in Apple operating systems

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 iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. An app may be able to cause unexpected system termination or corrupt kernel memory. The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.
References

Fri, 21 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Title Kernel memory corruption via buffer overflow in Apple operating systems

Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption and System Termination via Improper Memory Handling in Apple Operating Systems
Weaknesses CWE-758
CWE-787

Tue, 18 Aug 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os

Tue, 18 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

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

Mon, 17 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
Title Kernel Memory Corruption and System Termination via Improper Memory Handling in Apple Operating Systems
First Time appeared Apple
Apple ios And Ipados
Apple macos
Weaknesses CWE-758
CWE-787
Vendors & Products Apple
Apple ios And Ipados
Apple macos

Mon, 17 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. An app may be able to cause unexpected system termination or corrupt kernel memory.
References

Subscriptions

Apple Ios And Ipados Ipados Iphone Os Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-14T20:50:53.752Z

Reserved: 2026-07-22T00:45:02.635Z

Link: CVE-2026-65330

cve-icon Vulnrichment

Updated: 2026-08-18T13:26:22.835Z

cve-icon NVD

Status : Modified

Published: 2026-08-17T22:17:23.933

Modified: 2026-09-14T21:17:17.003

Link: CVE-2026-65330

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T07:00:08Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer