CVE-2022-42856Known exploitationNetwork attack vector

Code execution via WebKit type confusion

Published Dec 15, 2022 · Updated Oct 21, 2025

Type confusion in WebKit in Apple tvOS before 16.2 allows remote attackers to execute arbitrary code by processing malicious web content. Apple attributes the flaw to incorrect state handling but has not disclosed the affected code path or the incompatible types involved. Exploitation requires tvOS to process attacker-controlled web content; Apple reported active exploitation against iOS before 15.1, not specifically against tvOS.

CVSS severity8.8
High
EPSS probability8.52%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Type confusion in WebKit in Apple tvOS before 16.2 allows remote attackers to execute arbitrary code by processing malicious web content. Apple attributes the flaw to incorrect state handling but has not disclosed the affected code path or the incompatible types involved. Exploitation requires tvOS to process attacker-controlled web content; Apple reported active exploitation against iOS before 15.1, not specifically against tvOS.

The record

CVE
CVE-2022-42856
Published
Dec 15, 2022
Updated
Oct 21, 2025
Vendor
Apple
Product
tvOS
Classifications
CWE-843, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2022Exploitation reportedCISA Known Exploited Vulnerabilities catalog listing
  2. Dec 15, 2022CVE publishedPublication date reported by the CVE source.
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <13.1
  2. Affected versionversion=unspecified <15.7
  3. Affected versionversion=unspecified <16.1
  4. Affected versionversion=unspecified <16.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · tvOSversion=unspecified <13.1; version=unspecified <15.7; version=unspecified <16.1; version=unspecified <16.2

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo