Read the docs
TI-2023-09356 Aliases CVE-2023-23524GHSA-r596-4r66-j5v5

Uncontrolled resource consumption in Apple iOS and iPadOS

Priority LOW 34CWE-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 · None · High
Fix status
Fixed

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

Summary

A denial-of-service issue was addressed with improved input validation. This issue is fixed in tvOS 16.3.2, iOS 16.3.1 and iPadOS 16.3.1, watchOS 9.3.1, macOS Ventura 13.2.1. Processing a maliciously crafted certificate may lead to a denial-of-service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.006 48th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 16.3watchOS (Apple): 9.3+2 more products

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 16.316.3Patch availableCNA
ApplewatchOSbefore 9.39.3Patch availableCNA
ApplemacOSbefore 13.213.2Patch availableCNA
AppletvOSbefore 16.316.3Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 16.3 Fixed in 16.3 Patch available CNA
  • watchOS VendorApple Affected before 9.3 Fixed in 9.3 Patch available CNA
  • macOS VendorApple Affected before 13.2 Fixed in 13.2 Patch available CNA
  • tvOS VendorApple Affected before 16.3 Fixed in 16.3 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 16.3.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 16.3.1VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 13.2.1VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 16.3.2VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 9.3.1VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 16.3.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 16.3.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 13.2.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 16.3.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 9.3.1 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 16.3
  • Fix · CNA watchOS (Apple) Fixed in 9.3
  • Fix · CNA macOS (Apple) Fixed in 13.2
  • Fix · CNA tvOS (Apple) Fixed in 16.3

Fixed in the same release

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

  • Release ·

    Apple macOS 13.2

    28 records Highest priority Priority CRITICAL 1 CRITICAL, 6 MEDIUM, 21 LOW

    Other records, highest priority first

    • TI-2023-09361 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2023-09347 Buffer overflow in Apple macOSPriority MEDIUM 52
    • TI-2023-09363 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 43
    Show all 28 records →
  • Release ·

    Apple iOS and iPadOS 16.3

    19 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2023-09361 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
    • TI-2023-09363 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2023-09351 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 19 records →
Show 2 more groups
  • Release ·

    Apple watchOS 9.3

    14 records Highest priority Priority MEDIUM 4 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2023-09351 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2023-09350 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2023-09331 Code injection in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 14 records →
  • Release ·

    Apple tvOS 16.3

    13 records Highest priority Priority MEDIUM 4 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2023-09351 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2023-09350 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2023-09331 Code injection in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 13 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-23524
  2. 2026-10-03 Alias added: GHSA-r596-4r66-j5v5

References

Advisory 4

  • 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