CVE-2022-42856: Apple iOS Type Confusion Vulnerability
CVE-2022-42856 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-12-14
A type confusion vulnerability in Apple's WebKit engine allows for arbitrary code execution when processing maliciously crafted web content. The issue was addressed through improved state handling across multiple Apple operating systems and the Safari browser.
Yes. CVE-2022-42856 is known to be exploited in the wild, first recorded on 14 December 2022. Treat it as urgent.
How severe is CVE-2022-42856?
Critical severity, with a CVSS score of 8.8, published 14 December 2022.
Which products and versions are affected?
Apple iOS before 15.7.2, 16.0 to 16.1.2; Apple iPadOS before 15.7.2; Apple macOS Ventura before 13.1; Apple tvOS before 16.2; and 1 more.
Is there a fix for CVE-2022-42856?
A patch was published on 2022-12-14: Fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2, iPadOS 15.7.2, and iOS 16.1.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2022-42856 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2022-42856?
Check whether you run Apple iPadOS, Apple macOS, Apple watchOS or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Apple iOS before 15.7.2, 16.0 to 16.1.2
Apple iPadOS before 15.7.2
Apple macOS Ventura before 13.1
Apple tvOS before 16.2
Apple Safari before 16.2
Timeline
2022-12-14: disclosed: Initial publication and CISA KEV addition
2022-12-14: kev added
2022-12-14: patched: Fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2, iPadOS 15.7.2, and iOS 16.1.2
exploited: Apple reported awareness of active exploitation against versions of iOS released before iOS 15.1.