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TI-2023-21227 Aliases CVE-2023-40408GHSA-8xq6-frf7-63cg

Uncontrolled resource consumption in Apple iOS and iPadOS

Priority LOW 32CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.1, watchOS 10.1, iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1. Hide My Email may be deactivated unexpectedly.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01209 68th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 16.7, 17.1macOS (Apple): 14.1+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 16.716.7Patch availableCNA
ApplemacOSbefore 14.114.1Patch availableCNA
ApplewatchOSbefore 10.110.1Patch availableCNA
AppleiOS and iPadOSbefore 17.117.1Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 16.7 Fixed in 16.7 Patch available CNA
  • macOS VendorApple Affected before 14.1 Fixed in 14.1 Patch available CNA
  • watchOS VendorApple Affected before 10.1 Fixed in 10.1 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 17.1 Fixed in 17.1 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 16.7.2; 17.0 to before 17.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 16.7.2; 17.0 to before 17.1VulnerableApple
cpe:2.3:o:apple:macos:14.0:*:*:*:*:*:*:*14.0VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 10.1VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 16.7.2; 17.0 to before 17.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 16.7.2; 17.0 to before 17.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 10.1 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 16.7
  • Fix · CNA macOS (Apple) Fixed in 14.1
  • Fix · CNA watchOS (Apple) Fixed in 10.1
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 17.1

Fixed in the same release

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

  • Release ·

    Apple macOS 14.1

    33 records Highest priority Priority MEDIUM 4 MEDIUM, 29 LOW

    Other records, highest priority first

    • TI-2023-22939 Apple iOS and iPadOS: Processing web content may lead to arbitrary code executionPriority MEDIUM 44
    • TI-2023-22932 Link following in Apple macOSPriority MEDIUM 42
    • TI-2023-22359 Use after free in Apple iOS and iPadOSPriority MEDIUM 41
  • Release ·

    Apple iOS and iPadOS 17.1

    21 records Highest priority Priority MEDIUM 4 MEDIUM, 17 LOW

    Other records, highest priority first

    • TI-2023-22939 Apple iOS and iPadOS: Processing web content may lead to arbitrary code executionPriority MEDIUM 44
    • TI-2023-22359 Use after free in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2023-21265 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41
Show 2 more groups
  • Release ·

    Apple iOS and iPadOS 16.7

    17 records Highest priority Priority MEDIUM 3 MEDIUM, 14 LOW

    Other records, highest priority first

    • TI-2023-22939 Apple iOS and iPadOS: Processing web content may lead to arbitrary code executionPriority MEDIUM 44
    • TI-2023-22359 Use after free in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2023-21265 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41
  • Release ·

    Apple watchOS 10.1

    11 records Highest priority Priority MEDIUM 3 MEDIUM, 8 LOW

    Other records, highest priority first

    • TI-2023-22939 Apple iOS and iPadOS: Processing web content may lead to arbitrary code executionPriority MEDIUM 44
    • TI-2023-22359 Use after free in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2023-21265 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40408
  2. 2026-10-03 Alias added: GHSA-8xq6-frf7-63cg

References

  • 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