CVE-2026-65330

Kernel memory corruption via improper memory handling

Published Aug 17, 2026 · Updated Aug 18, 2026

Memory corruption in the Kernel in Apple macOS before 26.6.2 allows local users to crash the system or corrupt kernel memory via a crafted app. Apple identifies the flaw only as a Kernel memory-handling issue and has not disclosed a file, function, or input path beyond the app-triggerable bug class. Exploitation requires code execution in an app context on the device and is bounded in the reviewed records to unexpected system termination or kernel-memory corruption.

CVSS severity6.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the Kernel in Apple macOS before 26.6.2 allows local users to crash the system or corrupt kernel memory via a crafted app. Apple identifies the flaw only as a Kernel memory-handling issue and has not disclosed a file, function, or input path beyond the app-triggerable bug class. Exploitation requires code execution in an app context on the device and is bounded in the reviewed records to unexpected system termination or kernel-memory corruption.

The record

CVE
CVE-2026-65330
Published
Aug 17, 2026
Updated
Aug 18, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-119, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.6.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <26.6.2

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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