CVE-2023-42824
Published 2023-10-04 · Updated 2026-06-17 · Source product-security@apple.com
Summary
CVE-2023-42824 is a high-severity (CVSS 7.8) vulnerability in Apple iOS and iPadOS. CISA added it to the Known Exploited Vulnerabilities catalog on October 5, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 26, 2023. CISA does not currently list it as used in ransomware campaigns. Apple has 96 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 96 known-exploited Apple vulnerabilities →Description
The issue was addressed with improved checks. This issue is fixed in iOS 16.7.1 and iPadOS 16.7.1. A local attacker may be able to elevate their privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.6.
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Apple — iOS and iPadOS
Name: Apple iOS and iPadOS Kernel Privilege Escalation Vulnerability
Date added: 2023-10-05 · Due: 2023-10-26
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

