CVE-2022-42856

HIGH8.8

CISA KEV

Published 2022-12-15 · Updated 2026-06-17 · Source product-security@apple.com

Summary

CVE-2022-42856 is a high-severity (CVSS 8.8) vulnerability in Apple iOS. CISA added it to the Known Exploited Vulnerabilities catalog on December 14, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by January 4, 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

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-843CWE-843

CISA Known-Exploited Vulnerability

Product: Apple — iOS

Name: Apple iOS Type Confusion Vulnerability

Date added: 2022-12-14 · Due: 2023-01-04

Required action: Apply updates per vendor instructions.

References

View on NVD

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