TI-2023-21259 Aliases CVE-2023-40441 GHSA-4w89-86x6-qgv9

Uncontrolled resource consumption in Apple iOS and iPadOS

LOW 31CWE-400Published 2023-09-26 · Updated 2025-11-04

Key facts

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

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

Summary

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01125 66th percentileScored 2026-11-07

Fix Fixed iOS and iPadOS (Apple): 17macOS (Apple): 14

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	iOS and iPadOS	before 17	17	Patch available	CNA
Apple	macOS	before 14	14	Patch available	CNA

iOS and iPadOS VendorApple Affected before 17 Fixed in 17 Patch available CNA
macOS VendorApple Affected before 14 Fixed in 14 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:ipados::::::::	before 17.0	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 17.0	Vulnerable	Apple
cpe:2.3:o:apple:macos::::::::	before 14.0	Vulnerable	Apple

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 17.0 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 17.0 Vulnerable ·Apple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 14.0 Vulnerable ·Apple

Remediation

Fix · CNA iOS and iPadOS (Apple) Fixed in 17
Fix · CNA macOS (Apple) Fixed in 14

Fixed in the same release

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

Release · 2023-09-26
Apple macOS 14
60 records Highest priority Priority MEDIUM 9 MEDIUM, 51 LOW
Other records, highest priority first
- TI-2023-21273 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority MEDIUM 52
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-19959 Apple macOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority MEDIUM 52
Show all 60 records →
Release · 2023-09-26
Apple iOS and iPadOS 17
48 records Highest priority Priority MEDIUM 5 MEDIUM, 43 LOW
Other records, highest priority first
- TI-2023-21219 Apple iOS and iPadOS: A remote user may cause an unexpected app termination or arbitrary…Priority MEDIUM 52
- TI-2023-21698 Code injection in Apple iOS and iPadOSPriority MEDIUM 47
- TI-2023-21266 Apple iOS and iPadOS: A remote attacker may be able to break out of Web Content sandboxPriority MEDIUM 47
Show all 48 records →

Timeline

2026-10-02 Threatist record created from CVE-2023-40441
2026-10-03 Alias added: GHSA-4w89-86x6-qgv9

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