Out-of-bounds write in Apple iOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- 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 iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. A remote attacker may be able to cause arbitrary code execution.
Why it matters now
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 12.4 | iOS 12.4 | Patch available | CNA |
| Apple | macOS | before macOS Mojave 10.14.6 | macOS Mojave 10.14.6 | Patch available | CNA |
| Apple | tvOS | before tvOS 12.4 | tvOS 12.4 | Patch available | CNA |
| Apple | watchOS | before watchOS 5.3 | watchOS 5.3 | Patch available | CNA |
- iOS VendorApple Affected before iOS 12.4 Fixed in iOS 12.4 Patch available CNA
- macOS VendorApple Affected before macOS Mojave 10.14.6 Fixed in macOS Mojave 10.14.6 Patch available CNA
- tvOS VendorApple Affected before tvOS 12.4 Fixed in tvOS 12.4 Patch available CNA
- watchOS VendorApple Affected before watchOS 5.3 Fixed in watchOS 5.3 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 12.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | before 10.14.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 12.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 5.3 | Vulnerable | Apple |
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.4 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.14.6 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 12.4 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 5.3 Vulnerable ·Apple
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 12.4
- Fix · CNA macOS (Apple) Fixed in macOS Mojave 10.14.6
- Fix · CNA tvOS (Apple) Fixed in tvOS 12.4
- Fix · CNA watchOS (Apple) Fixed in watchOS 5.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS macOS Mojave 10.14.6
37 records Highest priority Priority MEDIUM 25 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2019-06227 Out-of-bounds write in Apple iOSPriority MEDIUM 57
- TI-2019-06228 Use after free in Apple macOSPriority MEDIUM 55
- TI-2019-06229 Use after free in Apple iOSPriority MEDIUM 54
- Release ·
Apple iOS iOS 12.4
33 records Highest priority Priority MEDIUM 25 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2019-06227 Out-of-bounds write in Apple iOSPriority MEDIUM 57
- TI-2019-06219 Use after free in Apple iOSPriority MEDIUM 57
- TI-2019-06229 Use after free in Apple iOSPriority MEDIUM 54
Show 2 more groups
- Release ·
Apple tvOS tvOS 12.4
29 records Highest priority Priority MEDIUM 25 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2019-06227 Out-of-bounds write in Apple iOSPriority MEDIUM 57
- TI-2019-06219 Use after free in Apple iOSPriority MEDIUM 57
- TI-2019-06229 Use after free in Apple iOSPriority MEDIUM 54
- Release ·
Apple watchOS watchOS 5.3
19 records Highest priority Priority MEDIUM 15 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2019-06227 Out-of-bounds write in Apple iOSPriority MEDIUM 57
- TI-2019-06219 Use after free in Apple iOSPriority MEDIUM 57
- TI-2019-06229 Use after free in Apple iOSPriority MEDIUM 54
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8648
- 2026-10-03 Alias added: GHSA-xh5w-7cjj-c462
References
More Apple Iphone Os vulnerabilities
- 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
Sources
- CVE-2019-8648 · CVE Program
- CVE-2019-8648 · NVD
- FIRST EPSS
- GHSA-xh5w-7cjj-c462 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences