CVEs / CVE-2023-42824

CVE-2023-42824: Apple iOS and iPadOS Kernel Privilege Escalation Vulnerability

Known exploited in the CISA KEV catalog since 5 Oct 2023
high 7.8 CVSS 3.1 (NVD)
EPSS 0.97% chance of exploitation in the next 30 days, higher than 61% of CVEs (30 Oct 2026)
Last changed at its sources 17 Jun 2026

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Summary

Apple iOS and iPadOS contain an unspecified vulnerability that allows for local privilege escalation.
CISA, Known Exploited Vulnerabilities catalog

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.
The CVE record, via NVD · published 4 Oct 2023 · NVD status: Analyzed

Affected and fixed versions

As stated by the CVE record (from the CNA)
Product	Affected	Fixed in
Apple iOS and iPadOS	from unspecified, before 16.7	16.7

Exploitation

In CISA KEV since	5 Oct 2023
Due date for US federal agencies	26 Oct 2023
Used in ransomware campaigns	Unknown
Required action	Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity

CVSS 3.1	7.8 high `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Scored by NVD

References

CVE-2023-42824 on NVD
CVE-2023-42824 in the CISA KEV catalog
https://support.apple.com/en-us/HT213961 (cited by CISA)
https://support.apple.com/en-us/HT213972 Vendor Advisory
https://support.apple.com/kb/HT213961 Vendor Advisory
https://support.apple.com/kb/HT213972 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42824 US Government Resource

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.