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CVE-2023-23536

HighPublished

The issue was addressed with improved bounds checks. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.5, iOS 15.7.4...

Published: May 8, 2023
Updated: Jan 29, 2025
Assigning CNA: apple
Evidence observed: Aug 28, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 20.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The issue was addressed with improved bounds checks. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.5, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, tvOS 16.4, watchOS 9.4. An app may be able to execute arbitrary code with kernel privileges.

Sources

kfdExploit
kfd, short for kernel file descriptor, is a project to read and write kernel memory on Apple devices.

Responsible use

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