Remote code execution in Apple iOS 12

Published: 2023-01-23
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-42856
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
Apple iOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Type Confusion

EUVDB-ID: #VU70195

Risk: Critical


CVE-ID: CVE-2022-42856

CWE-ID: CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Exploit availability: No


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in WebKit. A remote attacker can trick the victim to visit a specially crafted website, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.


Install update from vendor's website.

Vulnerable software versions

Apple iOS: 12.5 16H20 - 12.5.6 16H71, 12.3 16F156 - 12.3.2 16F250, 12.1 16B92 - 12.1.4 16D57, 12.0 16A366 - 12.0.1 16A405, 12.4 16G77 - 12.4.9 16H5

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?