Out-of-bounds write in Apple watchOS
Priority LOW 37CWE-787Published · Updated
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 state management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. An application may be able to execute arbitrary code with kernel privileges.
Why it matters now
EPSS 0.01677 77th percentileScored 2026-11-07
Fix Fixed watchOS (Apple): 7.1iOS and iPadOS (Apple): 14.2+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 | watchOS | before 7.1 | 7.1 | Patch available | CNA |
| Apple | iOS and iPadOS | before 14.2 | 14.2 | Patch available | CNA |
| Apple | tvOS | before 14.2 | 14.2 | Patch available | CNA |
| Apple | macOS | before 11.0 | 11.0 | Patch available | CNA |
- watchOS VendorApple Affected before 7.1 Fixed in 7.1 Patch available CNA
- iOS and iPadOS VendorApple Affected before 14.2 Fixed in 14.2 Patch available CNA
- tvOS VendorApple Affected before 14.2 Fixed in 14.2 Patch available CNA
- macOS VendorApple Affected before 11.0 Fixed in 11.0 Patch available CNA
CPE configurations NVD · 21
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 14.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 14.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | 10.14.0 to before 10.14.6; 10.15 to before 10.15.7 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:* | 10.14.6 security_update_2019-001 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:* | 10.14.6 security_update_2019-002 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:* | 10.14.6 security_update_2019-004 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:* | 10.14.6 security_update_2019-005 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:* | 10.14.6 security_update_2019-006 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:* | 10.14.6 security_update_2019-007 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:* | 10.14.6 security_update_2020-001 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.2 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.2 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.14.0 to before 10.14.6; 10.15 to before 10.15.7 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:* Versions 10.14.6 security_update_2019-001 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:* Versions 10.14.6 security_update_2019-002 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:* Versions 10.14.6 security_update_2019-004 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:* Versions 10.14.6 security_update_2019-005 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:* Versions 10.14.6 security_update_2019-006 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:* Versions 10.14.6 security_update_2019-007 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:* Versions 10.14.6 security_update_2020-001 Vulnerable ·Apple
Show 11 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:* | 10.14.6 security_update_2020-002 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:* | 10.14.6 security_update_2020-003 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:* | 10.14.6 security_update_2020-004 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:* | 10.14.6 security_update_2020-005 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:* | 10.14.6 security_update_2020-006 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:* | 10.14.6 supplemental_update | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:* | 10.14.6 supplemental_update_2 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* | 10.15.7 security_update_2020 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 11.0 to before 11.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 14.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 7.1 | Vulnerable | Apple |
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:* Versions 10.14.6 security_update_2020-002 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:* Versions 10.14.6 security_update_2020-003 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:* Versions 10.14.6 security_update_2020-004 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:* Versions 10.14.6 security_update_2020-005 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:* Versions 10.14.6 security_update_2020-006 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:* Versions 10.14.6 supplemental_update Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:* Versions 10.14.6 supplemental_update_2 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* Versions 10.15.7 security_update_2020 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.1 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 14.2 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 7.1 Vulnerable ·Apple
Remediation
- Fix · CNA watchOS (Apple) Fixed in 7.1
- Fix · CNA iOS and iPadOS (Apple) Fixed in 14.2
- Fix · CNA tvOS (Apple) Fixed in 14.2
- Fix · CNA macOS (Apple) Fixed in 11.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 11.0
45 records Highest priority Priority CRITICAL 2 CRITICAL, 1 HIGH, 4 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2020-16987 Type confusion in Apple watchOSPriority CRITICAL 93
- TI-2020-16985 Out-of-bounds write in Apple watchOSPriority CRITICAL 93
- TI-2020-17004 Apple watchOS: A malicious application may be able to disclose kernel memoryPriority HIGH 82
- Release ·
Apple iOS and iPadOS 14.2
22 records Highest priority Priority CRITICAL 2 CRITICAL, 1 HIGH, 1 MEDIUM, 18 LOW
Other records, highest priority first
- TI-2020-16987 Type confusion in Apple watchOSPriority CRITICAL 93
- TI-2020-16985 Out-of-bounds write in Apple watchOSPriority CRITICAL 93
- TI-2020-17004 Apple watchOS: A malicious application may be able to disclose kernel memoryPriority HIGH 82
Show 2 more groups
- Release ·
Apple watchOS 7.1
18 records Highest priority Priority CRITICAL 2 CRITICAL, 1 HIGH, 1 MEDIUM, 14 LOW
Other records, highest priority first
- TI-2020-16987 Type confusion in Apple watchOSPriority CRITICAL 93
- TI-2020-16985 Out-of-bounds write in Apple watchOSPriority CRITICAL 93
- TI-2020-17004 Apple watchOS: A malicious application may be able to disclose kernel memoryPriority HIGH 82
- Release ·
Apple tvOS 14.2
15 records Highest priority Priority MEDIUM 1 MEDIUM, 14 LOW
Other records, highest priority first
- TI-2020-16968 Integer overflow in Apple watchOSPriority MEDIUM 40
- TI-2020-16973 Use after free in Apple watchOSPriority LOW 38
- TI-2020-16969 Out-of-bounds write in Apple watchOSPriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10016
- 2026-10-03 Alias added: GHSA-j5cx-chhx-m9h2
References
Advisory 7
- https://support.apple.com/en-us/HT211931
- https://support.apple.com/en-us/HT211928
- https://support.apple.com/en-us/HT211929
- https://support.apple.com/en-us/HT211930
- https://support.apple.com/kb/HT212011
- 20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1
- 20201215 APPLE-SA-2020-12-14-3 macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave
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-2020-10016 · CVE Program
- CVE-2020-10016 · NVD
- FIRST EPSS
- GHSA-j5cx-chhx-m9h2 · GitHub Advisory Database · CC BY 4.0
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