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.
Published: 2026-08-17
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a memory handling flaw in Apple operating systems that can be triggered by an application. It is classified as a buffer overflow (CWE-119). An attacker can cause corruption of kernel memory or trigger an unexpected system termination, compromising the integrity and availability of the affected device. No obvious impact on confidentiality is noted, but the ability to overwrite 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, and macOS Tahoe releases earlier than 26.6.2. These operating system versions are present on iPhones, iPads, and Mac computers that have not applied the latest security update from Apple. Devices with the patch are not susceptible.

Risk and Exploitability

The CVSS score is 6.5, indicating 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 is currently available, and the flaw requires elevated privileges or code execution in an app to trigger the memory corruption.

Generated by OpenCVE AI on August 21, 2026 at 19:02 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.
  • Upgrade macOS Tahoe to version 26.6.2.

Generated by OpenCVE AI on August 21, 2026 at 19:02 UTC.

Tracking

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Advisories

No advisories yet.

History

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: 2026-08-18T13:26:27.223Z

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 : Analyzed

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

Modified: 2026-08-18T18:59:09.687

Link: CVE-2026-65330

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T19:15:04Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer