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Findings

CVE-2022-42856

Apple iOS Type Confusion Vulnerability

Published Dec 14, 2022 · updated Jun 16, 2026 · apple safari

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..

Timeline

Detection, updates, and resolution for this record.

  1. Dec 14, 2022 · Catalog

    Detected

    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..

  2. Dec 14, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jan 4, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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..

Required action

Apply updates per vendor instructions.

CISA due date Jan 4, 2023

Affected

  • cpe apple/ipadosversion unspecified
  • cpe apple/iphone osversion unspecified
  • cpe apple/macosversion unspecified
  • cpe apple/safariversion unspecified
  • cpe apple/tvosversion unspecified
  • vendor Apple iOSversion unspecified

Sources

  • CISA KEVCVE-2022-42856

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

    cisa.gov
  • CVE.orgCVE-2022-42856

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2022-42856

    30-day exploitation probability 8.5%

    first.org
  • NIST NVDCVE-2022-42856

    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 rep

    nvd.nist.gov

References