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TI-2022-20839 Aliases CVE-2022-42827GHSA-4pr5-h4qv-336x

Out-of-bounds write in Apple iOS and iPadOS

Priority CRITICAL 93Exploited in the wildCWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

Why it matters now

Exploitation Active In CISA KEV since 2022-10-25CISA due date 2022-11-15
EPSS 0.01062 64th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 16.1, 15.7

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
AppleiOS and iPadOSbefore 16.116.1Patch availableCNA
AppleiOS and iPadOSbefore 15.715.7Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 16.1 Fixed in 16.1 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 15.7 Fixed in 15.7 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 15.7.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 15.7.1; 16.0 to before 16.1VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 15.7.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.7.1; 16.0 to before 16.1 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 16.1
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 15.7

Fixed in the same release

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

  • Release ·

    Apple iOS and iPadOS 16.1

    7 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2022-14452 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2022-14456 Out-of-bounds write in Apple iOS and iPadOSPriority LOW 37
    • TI-2022-14462 Memory corruption in Apple iOS and iPadOSPriority LOW 36
    Show all 7 records →
  • Release ·

    Apple iOS and iPadOS 15.7

    6 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2022-14452 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2022-14456 Out-of-bounds write in Apple iOS and iPadOSPriority LOW 37
    • TI-2022-14462 Memory corruption in Apple iOS and iPadOSPriority LOW 36
    Show all 6 records →

Timeline

  1. 2022-10-25 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2022-42827
  3. 2026-10-03 Alias added: GHSA-4pr5-h4qv-336x

References

Advisory 2

  • 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