Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-42856

CVE-2022-42856HIGH

Apple iOS

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  H  H  H    8.8   .0852   94.9   YES

AFFECTED
  Product  Versions       Fixed
  tvOS     unspecified –  —
  tvOS     unspecified –  —
  tvOS     unspecified –  —
  tvOS     unspecified –  —
  tvOS     unspecified –  —

TIMELINE
  Oct 11  Reserved by apple
  Dec 14  Added to CISA KEV, remediation due 2023-01-04
  Dec 15  Published (CNA: apple)

CWE-843 · CNA: apple · CVSS v3.1 · 13 references · KEV due January 4, 2023

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..

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 11, 2022	Reserved	Reserved by apple
December 14, 2022	KEV ADDED	Added to CISA KEV, remediation due 2023-01-04
December 15, 2022	Published	Published (CNA: apple)

Affected

Affected products and packages — 5 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Apple	tvOS	—	unspecified	—
Apple	tvOS	—	unspecified	—
Apple	tvOS	—	unspecified	—
Apple	tvOS	—	unspecified	—
Apple	tvOS	—	unspecified	—

Weaknesses

CWE-843

References (13)

http://seclists.org/fulldisclosure/2022/Dec/21 [mailing-list]
http://seclists.org/fulldisclosure/2022/Dec/22 [mailing-list]
http://seclists.org/fulldisclosure/2022/Dec/23 [mailing-list]
http://seclists.org/fulldisclosure/2022/Dec/26 [mailing-list]
http://seclists.org/fulldisclosure/2022/Dec/28 [mailing-list]
http://www.openwall.com/lists/oss-security/2022/12/26/1 [mailing-list]
https://security.gentoo.org/glsa/202305-32
https://support.apple.com/en-us/HT213516
https://support.apple.com/en-us/HT213531
https://support.apple.com/en-us/HT213532
https://support.apple.com/en-us/HT213535
https://support.apple.com/en-us/HT213537
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856 [government-resource]

Authoritative record: CVE-2022-42856 at cve.org

Vendors: apple

Weaknesses: CWE-843

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-42856 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, October 7, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.