CVE-2022-42856

HIGH

8.8

CVSS Score

Published: December 15, 2022 at 12:00 AM UTC

Updated: June 17, 2026 at 05:05 AM UTC

5 products affected across 1 vendormacOSiPhone OSiPadOS

Using tvOS by Apple?

Get instant alerts when new vulnerabilities affect tvOS - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 9%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score8.5%

EPSS (Exploit Prediction Scoring System) estimates a 8.5% chance this CVE is exploited in the wild within the next 30 days — higher than 95% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

Required Action

Apply updates per vendor instructions.

Ransomware Use

Unknown

Added to KEV

Dec 14, 2022

Remediation Due

Jan 4, 2023

1393 days overdue

Notes

https://support.apple.com/en-us/HT213516

https://nvd.nist.gov/vuln/detail/CVE-2022-42856

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..

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 15.7.2

Affected range stops below 15.7.2, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.7.216.0 ≤ v < 16.1.2

Affected range stops below 15.7.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1.2, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 13.1

Affected range stops below 13.1, so it looks safe — our inference, not a vendor statement

Safari · Apple

95%

v < 16.2

Affected range stops below 16.2, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 13.1v < 15.7v < 16.1v < 16.2

Affected range stops below 13.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references