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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-42824

Apple iOS and iPadOS Kernel Privilege Escalation Vulnerability

KEVHIGH 7.8EPSS 0.97%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 October 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.97% probability · 62th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 5 October 2023 · due 26 October 2023
Affected
apple/ipados · apple/iphone os
Source
product-security@apple.com
EPSS trend
0%3%5%30 October 2026: 0.97%30 October 202630 October 2026

EPSS 1.0% since 30 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://support.apple.com/en-us/HT213961; https://nvd.nist.gov/vuln/detail/CVE-2023-42824

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.