CVE-2023-40436

critical

Description

The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14. An attacker may be able to cause unexpected system termination or read kernel memory.

References

https://support.apple.com/kb/HT213940

https://support.apple.com/en-us/HT213940

http://seclists.org/fulldisclosure/2023/Oct/3

Details

Source: Mitre, NVD

Published: 2023-09-27

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

Severity: High

CVSS v3

Base Score: 9.1

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

Severity: Critical

EPSS

EPSS: 0.00519