TI-2021-11295 Aliases CVE-2021-30928

Out-of-bounds write in Apple macOS

LOW 37CWE-787Published 2021-08-24 · Updated 2024-08-03

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.6, watchOS 8, tvOS 15, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15. Processing a maliciously crafted image may lead to arbitrary code execution.

Why it matters now

EPSS 0.01425 73rd percentileScored 2026-11-07

Fix Fixed macOS (Apple): 11.6, 14.8, 15tvOS (Apple): 15+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	macOS	before 11.6	11.6	Patch available	CNA
Apple	macOS	before 14.8	14.8	Patch available	CNA
Apple	macOS	before 15	15	Patch available	CNA
Apple	tvOS	before 15	15	Patch available	CNA
Apple	watchOS	before 8	8	Patch available	CNA

macOS VendorApple Affected before 11.6 Fixed in 11.6 Patch available CNA
macOS VendorApple Affected before 14.8 Fixed in 14.8 Patch available CNA
macOS VendorApple Affected before 15 Fixed in 15 Patch available CNA
tvOS VendorApple Affected before 15 Fixed in 15 Patch available CNA
watchOS VendorApple Affected before 8 Fixed in 8 Patch available CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:ipados::::::::	before 14.8	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 15.0	Vulnerable	Apple
cpe:2.3:o:apple:macos::::::::	11.0 to before 11.6	Vulnerable	Apple
cpe:2.3:o:apple:tvos::::::::	before 15.0	Vulnerable	Apple
cpe:2.3:o:apple:watchos::::::::	before 8.0	Vulnerable	Apple
cpe:2.3:a:apple:icloud:13.0:::::windows::	13.0	Vulnerable	Apple

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.8 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.0 Vulnerable ·Apple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.6 Vulnerable ·Apple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 15.0 Vulnerable ·Apple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 8.0 Vulnerable ·Apple
cpe:2.3:a:apple:icloud:13.0:*:*:*:*:windows:*:* Versions 13.0 Vulnerable ·Apple

Remediation

Fix · CNA macOS (Apple) Fixed in 11.6
Fix · CNA macOS (Apple) Fixed in 14.8
Fix · CNA macOS (Apple) Fixed in 15
Fix · CNA tvOS (Apple) Fixed in 15
Fix · CNA watchOS (Apple) Fixed in 8

Fixed in the same release

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

Release · 2021-08-24
Apple macOS 11.6
72 records Highest priority Priority CRITICAL 4 CRITICAL, 5 MEDIUM, 63 LOW
Other records, highest priority first
- TI-2021-11230 Use after free in Apple macOSPriority CRITICAL 97
- TI-2021-11253 Out-of-bounds write in Apple iOS and iPadOSPriority CRITICAL 93
- TI-2021-11232 Integer overflow in Apple macOSPriority CRITICAL 93
Show all 72 records →
Release · 2021-08-24
Apple watchOS 8
8 records Highest priority Priority MEDIUM 4 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2021-11223 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 43
- TI-2021-11292 Incorrect authorization in Apple macOSPriority MEDIUM 42
- TI-2021-11224 Type confusion in Apple iOS and iPadOSPriority MEDIUM 41
Show all 8 records →

Show 3 more groups

Release · 2021-08-24
Apple tvOS 15
6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2021-11223 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 43
- TI-2021-11224 Type confusion in Apple iOS and iPadOSPriority MEDIUM 41
- TI-2021-11226 Apple iOS and iPadOS: A sandboxed process may be able to circumvent sandbox restrictionsPriority MEDIUM 40
Show all 6 records →
Release · 2021-08-24
Apple macOS 14.8
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2021-11231 Type confusion in Apple macOSPriority LOW 36
- TI-2021-11229 Race condition in Apple macOSPriority LOW 33
- TI-2021-11227 Link following in Apple macOSPriority LOW 29
Show all 4 records →
Release · 2021-08-24
Apple macOS 15
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2021-11292 Incorrect authorization in Apple macOSPriority MEDIUM 42
- TI-2021-11229 Race condition in Apple macOSPriority LOW 33
- TI-2021-11227 Link following in Apple macOSPriority LOW 29
Show all 4 records →

Timeline

2026-10-02 Threatist record created from CVE-2021-30928

References

Other 6

TI-2019-06084 Type confusion in Apple iOS KEVCVSS 3.1HIGH 8.8
TI-2020-16987 Type confusion in Apple watchOS KEVCVSS 3.1HIGH 7.8
TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code execution CVSS 3.1CRITICAL 9.8
TI-2018-03187 Memory corruption in Apple WebKit CVSS 3.1HIGH 8.8
TI-2018-03118 Memory corruption in Apple WebKit CVSS 3.0HIGH 8.8
TI-2018-03361 Memory corruption in iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows CVSS 3.0HIGH 8.8

See all 448 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences