Apple iOS: A malicious application may be able to execute arbitrary code with kernel…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2. A malicious application may be able to execute arbitrary code with kernel privileges.
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 13.4 and iPadOS 13.4 | iOS 13.4 and iPadOS 13.4 | Patch available | CNA |
| Apple | macOS | before macOS Catalina 10.15.4 | macOS Catalina 10.15.4 | Patch available | CNA |
| Apple | tvOS | before tvOS 13.4 | tvOS 13.4 | Patch available | CNA |
| Apple | watchOS | before watchOS 6.2 | watchOS 6.2 | Patch available | CNA |
- iOS VendorApple Affected before iOS 13.4 and iPadOS 13.4 Fixed in iOS 13.4 and iPadOS 13.4 Patch available CNA
- macOS VendorApple Affected before macOS Catalina 10.15.4 Fixed in macOS Catalina 10.15.4 Patch available CNA
- tvOS VendorApple Affected before tvOS 13.4 Fixed in tvOS 13.4 Patch available CNA
- watchOS VendorApple Affected before watchOS 6.2 Fixed in watchOS 6.2 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 13.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 13.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | before 10.15.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 13.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 6.2 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.4 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.4 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.15.4 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 13.4 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 6.2 Vulnerable ·Apple
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 13.4 and iPadOS 13.4
- Fix · CNA macOS (Apple) Fixed in macOS Catalina 10.15.4
- Fix · CNA tvOS (Apple) Fixed in tvOS 13.4
- Fix · CNA watchOS (Apple) Fixed in watchOS 6.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS iOS 13.4 and iPadOS 13.4
29 records Highest priority Priority MEDIUM 10 MEDIUM, 19 LOW
Other records, highest priority first
- TI-2020-03409 Buffer overflow in Apple iOSPriority MEDIUM 48
- TI-2020-03397 Type confusion in Apple iOSPriority MEDIUM 46
- TI-2020-03411 Buffer overflow in Apple iOSPriority MEDIUM 45
- Release ·
Apple macOS macOS Catalina 10.15.4
22 records Highest priority Priority MEDIUM 5 MEDIUM, 17 LOW
Other records, highest priority first
- TI-2020-03409 Buffer overflow in Apple iOSPriority MEDIUM 48
- TI-2020-03411 Buffer overflow in Apple iOSPriority MEDIUM 45
- TI-2020-03410 Buffer overflow in Apple iOSPriority MEDIUM 45
Show 2 more groups
- Release ·
Apple tvOS tvOS 13.4
19 records Highest priority Priority MEDIUM 10 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2020-03409 Buffer overflow in Apple iOSPriority MEDIUM 48
- TI-2020-03397 Type confusion in Apple iOSPriority MEDIUM 46
- TI-2020-03411 Buffer overflow in Apple iOSPriority MEDIUM 45
- Release ·
Apple watchOS watchOS 6.2
17 records Highest priority Priority MEDIUM 9 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2020-03409 Buffer overflow in Apple iOSPriority MEDIUM 48
- TI-2020-03397 Type confusion in Apple iOSPriority MEDIUM 46
- TI-2020-03411 Buffer overflow in Apple iOSPriority MEDIUM 45
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3919
- 2026-10-03 Alias added: GHSA-vg3r-gmcv-9287
References
More Apple Ipados 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-2020-3919 · CVE Program
- CVE-2020-3919 · NVD
- FIRST EPSS
- GHSA-vg3r-gmcv-9287 · 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