CVE-2023-42824

Apple iOS and iPadOS Kernel Privilege Escalation Vulnerability

High 7.8
Exploited: added to CISA KEV 5 Oct 2023

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.

Key facts

Published: 4 Oct 2023
Last changed: 4 Nov 2025
Assigned by: apple
KEV added: 5 Oct 2023
KEV fix due: 26 Oct 2023
EPSS: 0.971% likely to be exploited in the next 30 days, higher than 62.451% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

7.8CVSS 3.1, Highfrom CISA (ADP container)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
Apple	iOS and iPadOS	unspecified up to but excluding 16.7 (affected)

Timeline

4 Oct 2023 Published
5 Oct 2023 CVE-2023-42824 added to CISA KEV
5 Oct 2023 Added to the CISA KEV catalogue

References

support.apple.com