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TI-2022-20866 Aliases CVE-2022-42856GHSA-qh2r-8xvg-hm24

Type confusion in Apple tvOS

Priority CRITICAL 97Exploited in the wildCWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-843 and the CVSS impact.

Summary

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..

Why it matters now

Exploitation Active In CISA KEV since 2022-12-14CISA due date 2023-01-04
EPSS 0.08523 95th percentileScored 2026-11-07
Fix Partial tvOS (Apple): 16.2, 13.1, 15.7 +1Red Hat: 3 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppletvOSbefore 16.216.2Patch availableCNA
AppletvOSbefore 13.113.1Patch availableCNA
AppletvOSbefore 15.715.7Patch availableCNA
AppletvOSbefore 16.116.1Patch availableCNA
AppletvOSbefore 16.216.2Patch availableCNA
  • tvOS VendorApple Affected before 16.2 Fixed in 16.2 Patch available CNA
  • tvOS VendorApple Affected before 13.1 Fixed in 13.1 Patch available CNA
  • tvOS VendorApple Affected before 15.7 Fixed in 15.7 Patch available CNA
  • tvOS VendorApple Affected before 16.1 Fixed in 16.1 Patch available CNA
  • tvOS VendorApple Affected before 16.2 Fixed in 16.2 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 16.2VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 15.7.2VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 15.7.2; 16.0 to before 16.1.2VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 13.1VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 16.2VulnerableApple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 16.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 15.7.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.7.2; 16.0 to before 16.1.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 13.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 16.2 Vulnerable ·Apple

Remediation

  • Fix · CNA tvOS (Apple) Fixed in 16.2
  • Fix · CNA tvOS (Apple) Fixed in 13.1
  • Fix · CNA tvOS (Apple) Fixed in 15.7
  • Fix · CNA tvOS (Apple) Fixed in 16.1
  • Fix · CNA tvOS (Apple) Fixed in 16.2

Red Hat 3 advisories

  • RHSA-2025:10364 Released 2025-07-07 · Red Hat rating Important
    webkitgtk4 security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.48.3-2.el7_9, webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-jsc-2.48.3-2.el7_9 +1
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-doc-2.48.3-2.el7_9, webkitgtk4-jsc-devel-2.48.3-2.el7_9
  • RHSA-2023:0021 Released 2023-01-04 · Red Hat rating Important
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3-2.36.7-1.el9_1.1, webkit2gtk3-devel-2.36.7-1.el9_1.1, webkit2gtk3-jsc-2.36.7-1.el9_1.1 +1
  • RHSA-2023:0016 Released 2023-01-04 · Red Hat rating Important
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3-2.36.7-1.el8_7.1, webkit2gtk3-devel-2.36.7-1.el8_7.1, webkit2gtk3-jsc-2.36.7-1.el8_7.1 +1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple tvOS 16.2

    26 records Highest priority Priority CRITICAL 1 CRITICAL, 1 HIGH, 7 MEDIUM, 17 LOW

    Other records, highest priority first

    Show all 26 records →
  • Release ·

    Apple tvOS 13.1

    22 records Highest priority Priority CRITICAL 1 CRITICAL, 1 HIGH, 7 MEDIUM, 13 LOW

    Other records, highest priority first

    Show all 22 records →
Show 1 more group
  • Release ·

    Apple tvOS 15.7

    11 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 7 LOW

    Other records, highest priority first

    Show all 11 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:0016
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:0021
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:10364
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:10364

Timeline

  1. 2022-12-14 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2022-42856
  3. 2026-10-03 Alias added: GHSA-qh2r-8xvg-hm24
  4. 2026-10-19 EPSS moved to the 95th–99th percentile

References

Advisory 12

  • TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
See all 2382 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences