⚠ Actively exploited
Added to CISA KEV on 2022-12-14. Federal agencies required to patch by 2023-01-04. Required action: Apply updates per vendor instructions..

CVE-2022-42856Type Confusion in Apple Tvos

CWE-843Type Confusion22 documents12 sources
Severity
8.8HIGHNVD
EPSS
0.3%
top 50.72%
CISA KEV
KEV
Added 2022-12-14
Due 2023-01-04
Exploit
Exploited in wild
Active exploitation observed
Timeline
KEV addedDec 14
PublishedDec 15
KEV dueJan 4
Latest updateDec 3
CISA Required Action: Apply updates per vendor instructions.

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:HExploitability: 2.8 | Impact: 5.9

Affected Packages6 packages

CVEListV5apple/tvosunspecified16.2+3
NVDapple/tvos< 16.2
NVDapple/macos< 13.1
NVDapple/ipados< 15.7.2
NVDapple/safari< 16.2

🔴Vulnerability Details

4
GHSA
GHSA-qh2r-8xvg-hm24: A type confusion issue was addressed with improved state handling2022-12-15
OSV
CVE-2022-42856: A type confusion issue was addressed with improved state handling2022-12-15
CVEList
CVE-2022-42856: A type confusion issue was addressed with improved state handling2022-12-15
VulnCheck
Apple iOS Type Confusion Vulnerability2022

📋Vendor Advisories

11
Apple
CVE-2022-42856: iOS 12.5.72023-01-23
Ubuntu
WebKitGTK vulnerabilities2023-01-09
CISA
Apple iOS Type Confusion Vulnerability2022-12-14
Red Hat
webkitgtk: processing maliciously crafted web content may lead to an arbitrary code execution2022-12-14
Apple
CVE-2022-42856: iOS 16.2 and iPadOS 16.22022-12-13

🕵️Threat Intelligence

6
Mandiant
Intellexa’s Prolific Zero-Day Exploits Continue2025-12-03
Mandiant
Sanctioned but Still Spying: Intellexa’s Prolific Zero-Day Exploits Continue2025-12-03
Sentinelone
Protecting macOS |  7 Strategies for Enterprise Security in 20242024-01-02
Sentinelone
Protecting macOS |  7 Strategies for Enterprise Security in 20242024-01-02
Sentinelone
7 Ways Threat Actors Deliver macOS Malware in the Enterprise2023-01-09
CVE-2022-42856 — Type Confusion in Apple Tvos | cvebase