Race condition in Apple iOS
Priority LOW 37CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A race condition was addressed with improved state handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. An application may be able to gain elevated privileges.
Why it matters now
EPSS 0.03667 89th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 13.5 and iPadOS 13.5macOS (Apple): macOS Catalina 10.15.5+2 more products
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 13.5 and iPadOS 13.5 | iOS 13.5 and iPadOS 13.5 | Patch available | CNA |
| Apple | macOS | before macOS Catalina 10.15.5 | macOS Catalina 10.15.5 | Patch available | CNA |
| Apple | tvOS | before tvOS 13.4.5 | tvOS 13.4.5 | Patch available | CNA |
| Apple | watchOS | before watchOS 6.2.5 | watchOS 6.2.5 | Patch available | CNA |
- iOS VendorApple Affected before iOS 13.5 and iPadOS 13.5 Fixed in iOS 13.5 and iPadOS 13.5 Patch available CNA
- macOS VendorApple Affected before macOS Catalina 10.15.5 Fixed in macOS Catalina 10.15.5 Patch available CNA
- tvOS VendorApple Affected before tvOS 13.4.5 Fixed in tvOS 13.4.5 Patch available CNA
- watchOS VendorApple Affected before watchOS 6.2.5 Fixed in watchOS 6.2.5 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 13.5 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 13.5 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | before 10.15.5 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 13.4.5 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 6.2.5 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.5 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.5 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.15.5 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 13.4.5 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 6.2.5 Vulnerable ·Apple
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 13.5 and iPadOS 13.5
- Fix · CNA macOS (Apple) Fixed in macOS Catalina 10.15.5
- Fix · CNA tvOS (Apple) Fixed in tvOS 13.4.5
- Fix · CNA watchOS (Apple) Fixed in watchOS 6.2.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS iOS 13.5 and iPadOS 13.5
42 records Highest priority Priority CRITICAL 1 CRITICAL, 2 HIGH, 8 MEDIUM, 31 LOW
Other records, highest priority first
- TI-2020-07896 Out-of-bounds write in Apple iOSPriority CRITICAL 97
- TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code executionPriority HIGH 81
- TI-2020-07897 Out-of-bounds write in Apple iOSPriority HIGH 79
- Release ·
Apple macOS macOS Catalina 10.15.5
41 records Highest priority Priority MEDIUM 2 MEDIUM, 39 LOW
Other records, highest priority first
- TI-2020-07869 Out-of-bounds write in Apple iOSPriority MEDIUM 43
- TI-2020-07868 Out-of-bounds write in Apple iOSPriority MEDIUM 43
- TI-2020-07873 Out-of-bounds read in Apple iOSPriority LOW 39
Show 2 more groups
- Release ·
Apple watchOS watchOS 6.2.5
31 records Highest priority Priority CRITICAL 1 CRITICAL, 2 HIGH, 7 MEDIUM, 21 LOW
Other records, highest priority first
- TI-2020-07896 Out-of-bounds write in Apple iOSPriority CRITICAL 97
- TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code executionPriority HIGH 81
- TI-2020-07897 Out-of-bounds write in Apple iOSPriority HIGH 79
- Release ·
Apple tvOS tvOS 13.4.5
30 records Highest priority Priority HIGH 1 HIGH, 7 MEDIUM, 22 LOW
Other records, highest priority first
- TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code executionPriority HIGH 81
- TI-2020-07880 Apple iOS: Processing maliciously crafted web content may lead to arbitrary code executionPriority MEDIUM 51
- TI-2020-07869 Out-of-bounds write in Apple iOSPriority MEDIUM 43
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9839
- 2026-10-03 Alias added: GHSA-38pp-34cq-8xpr
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-2020-9839 · CVE Program
- CVE-2020-9839 · NVD
- FIRST EPSS
- GHSA-38pp-34cq-8xpr · 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