TI-2019-06099 Aliases CVE-2019-8521 GHSA-x5pq-q8xx-mmmf

Apple iOS: A malicious application may be able to overwrite arbitrary files

LOW 26Published 2019-12-18 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

This issue was addressed with improved checks. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4. A malicious application may be able to overwrite arbitrary files.

Why it matters now

EPSS 0.00823 57th percentileScored 2026-11-07

Fix Fixed iOS (Apple): iOS 12.2macOS (Apple): macOS Mojave 10.14.4

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	iOS	before iOS 12.2	iOS 12.2	Patch available	CNA
Apple	macOS	before macOS Mojave 10.14.4	macOS Mojave 10.14.4	Patch available	CNA

iOS VendorApple Affected before iOS 12.2 Fixed in iOS 12.2 Patch available CNA
macOS VendorApple Affected before macOS Mojave 10.14.4 Fixed in macOS Mojave 10.14.4 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:iphone_os::::::::	before 12.2	Vulnerable	Apple
cpe:2.3:o:apple:mac_os_x::::::::	before 10.14.4	Vulnerable	Apple

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.2 Vulnerable ·Apple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.14.4 Vulnerable ·Apple

Remediation

Fix · CNA iOS (Apple) Fixed in iOS 12.2
Fix · CNA macOS (Apple) Fixed in macOS Mojave 10.14.4

Fixed in the same release

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

Release · 2019-12-18
Apple iOS iOS 12.2
49 records Highest priority Priority CRITICAL 1 CRITICAL, 18 MEDIUM, 30 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 49 records →
Release · 2019-12-18
Apple macOS macOS Mojave 10.14.4
33 records Highest priority Priority CRITICAL 1 CRITICAL, 4 MEDIUM, 28 LOW
Other records, highest priority first
- TI-2019-06104 Use after free in Apple macOSPriority CRITICAL 93
- TI-2019-06141 Race condition in Apple iOSPriority MEDIUM 46
- TI-2019-06105 Buffer overflow in Apple iOSPriority MEDIUM 45
Show all 33 records →

Timeline

2026-10-02 Threatist record created from CVE-2019-8521
2026-10-03 Alias added: GHSA-x5pq-q8xx-mmmf

References

Advisory 2

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 4500 →

Sources

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