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TI-2023-19965 Aliases CVE-2023-38593GHSA-644f-mhxf-h2fr

Apple iOS and iPadOS: An app may be able to cause a denial-of-service

Priority LOW 24Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A logic issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.8, iOS 16.6 and iPadOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, watchOS 9.6. An app may be able to cause a denial-of-service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00211 11th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 16.6macOS (Apple): 13.5, 11.7, 12.6+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 16.616.6Patch availableCNA
ApplemacOSbefore 13.513.5Patch availableCNA
ApplemacOSbefore 11.711.7Patch availableCNA
ApplemacOSbefore 12.612.6Patch availableCNA
ApplewatchOSbefore 9.69.6Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 16.6 Fixed in 16.6 Patch available CNA
  • macOS VendorApple Affected before 13.5 Fixed in 13.5 Patch available CNA
  • macOS VendorApple Affected before 11.7 Fixed in 11.7 Patch available CNA
  • macOS VendorApple Affected before 12.6 Fixed in 12.6 Patch available CNA
  • watchOS VendorApple Affected before 9.6 Fixed in 9.6 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 15.7.8; 16.0 to before 16.6VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 15.7.8; 16.0 to before 16.6VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 11.7.9; 12.0 to before 12.6.8; 13.0 to before 13.5VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 16.6VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 9.6VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 15.7.8; 16.0 to before 16.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.7.8; 16.0 to before 16.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 11.7.9; 12.0 to before 12.6.8; 13.0 to before 13.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 16.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 9.6 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 16.6
  • Fix · CNA macOS (Apple) Fixed in 13.5
  • Fix · CNA macOS (Apple) Fixed in 11.7
  • Fix · CNA macOS (Apple) Fixed in 12.6
  • Fix · CNA watchOS (Apple) Fixed in 9.6

Fixed in the same release

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

  • Release ·

    Apple macOS 13.5

    26 records Highest priority Priority MEDIUM 6 MEDIUM, 20 LOW

    Other records, highest priority first

    • TI-2023-19972 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 43
    • TI-2023-19983 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 41
    • TI-2023-19975 Apple iOS and iPadOS: A remote user may be able to cause a denial-of-servicePriority MEDIUM 41
    Show all 26 records →
  • Release ·

    Apple iOS and iPadOS 16.6

    16 records Highest priority Priority MEDIUM 4 MEDIUM, 12 LOW

    Other records, highest priority first

    • TI-2023-19972 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 43
    • TI-2023-19983 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 41
    • TI-2023-19975 Apple iOS and iPadOS: A remote user may be able to cause a denial-of-servicePriority MEDIUM 41
    Show all 16 records →
Show 3 more groups
  • Release ·

    Apple macOS 12.6

    12 records Highest priority Priority LOW 12 LOW

    Other records, highest priority first

    • TI-2023-18052 Use after free in Apple tvOSPriority LOW 36
    • TI-2023-15729 Out-of-bounds read in Apple macOSPriority LOW 36
    • TI-2023-15727 Apple tvOS: An app may be able to execute arbitrary code with kernel privilegesPriority LOW 36
    Show all 12 records →
  • Release ·

    Apple watchOS 9.6

    12 records Highest priority Priority MEDIUM 3 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2023-19972 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 43
    • TI-2023-19983 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 41
    • TI-2023-19967 Apple Safari: Processing web content may lead to arbitrary code executionPriority MEDIUM 41
    Show all 12 records →
  • Release ·

    Apple macOS 11.7

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2023-18052 Use after free in Apple tvOSPriority LOW 36
    • TI-2023-15729 Out-of-bounds read in Apple macOSPriority LOW 36
    • TI-2023-15727 Apple tvOS: An app may be able to execute arbitrary code with kernel privilegesPriority LOW 36
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38593
  2. 2026-10-03 Alias added: GHSA-644f-mhxf-h2fr

References

Advisory 7

  • 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