TI-2026-16711 Aliases CVE-2026-20654 GHSA-4m8q-p6h8-x2wj

Memory corruption in Apple iOS and iPadOS

LOW 24CWE-119Published 2026-02-11 · Updated 2026-04-02

Key facts

Attack vector: Local
Privileges required: Low
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-119 and the CVSS impact.

Summary

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An app may be able to cause unexpected system termination.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00152 4th percentileScored 2026-11-07

Fix Fixed iOS and iPadOS (Apple): 26.3macOS (Apple): 26.3+3 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	iOS and iPadOS	before 26.3	26.3	Patch available	CNA
Apple	macOS	before 26.3	26.3	Patch available	CNA
Apple	tvOS	before 26.3	26.3	Patch available	CNA
Apple	visionOS	before 26.3	26.3	Patch available	CNA
Apple	watchOS	before 26.3	26.3	Patch available	CNA

iOS and iPadOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
macOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
tvOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
visionOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
watchOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:ipados::::::::	before 26.3	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 26.3	Vulnerable	Apple
cpe:2.3:o:apple:macos::::::::	before 26.3	Vulnerable	Apple
cpe:2.3:o:apple:tvos::::::::	before 26.3	Vulnerable	Apple
cpe:2.3:o:apple:visionos::::::::	before 26.3	Vulnerable	Apple
cpe:2.3:o:apple:watchos::::::::	before 26.3	Vulnerable	Apple

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple

Remediation

Fix · CNA iOS and iPadOS (Apple) Fixed in 26.3
Fix · CNA macOS (Apple) Fixed in 26.3
Fix · CNA tvOS (Apple) Fixed in 26.3
Fix · CNA visionOS (Apple) Fixed in 26.3
Fix · CNA watchOS (Apple) Fixed in 26.3

Fixed in the same release

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

Release · 2026-02-11
Apple visionOS 26.3
26 records Highest priority Priority CRITICAL 1 CRITICAL, 4 MEDIUM, 21 LOW
Other records, highest priority first
- TI-2026-16755 Memory corruption in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2026-16733 Time-of-check time-of-use race condition in Apple iOS and iPadOSPriority MEDIUM 41
- TI-2026-16673 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
Show all 26 records →
Release · 2026-02-11
Apple macOS 26.3
21 records Highest priority Priority CRITICAL 1 CRITICAL, 2 MEDIUM, 18 LOW
Other records, highest priority first
- TI-2026-16755 Memory corruption in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2026-16709 Uncontrolled resource consumption in Apple SafariPriority MEDIUM 40
- TI-2026-16707 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 40
Show all 21 records →

Show 3 more groups

Release · 2026-02-11
Apple watchOS 26.3
15 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2026-16755 Memory corruption in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2026-16707 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 40
- TI-2026-16723 Protection mechanism failure in Apple iOS and iPadOSPriority LOW 39
Show all 15 records →
Release · 2026-02-11
Apple iOS and iPadOS 26.3
15 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2026-16755 Memory corruption in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2026-16707 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 40
- TI-2026-16723 Protection mechanism failure in Apple iOS and iPadOSPriority LOW 39
Show all 15 records →
Release · 2026-02-11
Apple tvOS 26.3
13 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM, 11 LOW
Other records, highest priority first
- TI-2026-16755 Memory corruption in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2026-16707 Uncontrolled resource consumption in Apple iOS and iPadOSPriority MEDIUM 40
- TI-2026-16731 Out-of-bounds read in Apple iOS and iPadOSPriority LOW 36
Show all 13 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-20654
2026-10-03 Alias added: GHSA-4m8q-p6h8-x2wj

References

Advisory 5

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