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TI-2020-07963 Aliases CVE-2020-9889GHSA-h5hg-4532-wfr5

Out-of-bounds write in Apple iOS

Priority LOW 38CWE-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

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. Processing a maliciously crafted audio file may lead to arbitrary code execution.

Why it matters now

EPSS 0.01757 78th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 13.6 and iPadOS 13.6macOS (Apple): macOS Catalina 10.15.6+2 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore iOS 13.6 and iPadOS 13.6iOS 13.6 and iPadOS 13.6Patch availableCNA
ApplemacOSbefore macOS Catalina 10.15.6macOS Catalina 10.15.6Patch availableCNA
AppletvOSbefore tvOS 13.4.8tvOS 13.4.8Patch availableCNA
ApplewatchOSbefore watchOS 6.2.8watchOS 6.2.8Patch availableCNA
  • iOS VendorApple Affected before iOS 13.6 and iPadOS 13.6 Fixed in iOS 13.6 and iPadOS 13.6 Patch available CNA
  • macOS VendorApple Affected before macOS Catalina 10.15.6 Fixed in macOS Catalina 10.15.6 Patch available CNA
  • tvOS VendorApple Affected before tvOS 13.4.8 Fixed in tvOS 13.4.8 Patch available CNA
  • watchOS VendorApple Affected before watchOS 6.2.8 Fixed in watchOS 6.2.8 Patch available CNA

CPE configurations NVD · 28

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 13.6VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 13.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.13 to before 10.13.6; 10.14 to before 10.14.6; 10.15 to before 10.15.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:*10.13.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:*10.13.6 security_update_2018-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:*10.13.6 security_update_2018-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:*10.13.6 security_update_2019-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:*10.13.6 security_update_2019-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:*10.13.6 security_update_2019-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:*10.13.6 security_update_2019-004VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.13 to before 10.13.6; 10.14 to before 10.14.6; 10.15 to before 10.15.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:* Versions 10.13.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:* Versions 10.13.6 security_update_2018-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:* Versions 10.13.6 security_update_2018-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:* Versions 10.13.6 security_update_2019-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:* Versions 10.13.6 security_update_2019-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:* Versions 10.13.6 security_update_2019-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:* Versions 10.13.6 security_update_2019-004 Vulnerable ·Apple
Show 18 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:*10.13.6 security_update_2019-005VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:*10.13.6 security_update_2019-006VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:*10.13.6 security_update_2019-007VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:*10.13.6 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-002:*:*:*:*:*:*10.13.6 security_update_2020-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-003:*:*:*:*:*:*10.13.6 security_update_2020-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*10.14.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*10.14.6 security_update_2019-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*10.14.6 security_update_2019-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*10.14.6 security_update_2019-004VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*10.14.6 security_update_2019-005VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*10.14.6 security_update_2019-006VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*10.14.6 security_update_2019-007VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*10.14.6 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*10.14.6 security_update_2020-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*10.14.6 security_update_2020-003VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 13.4.8VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 6.2.8VulnerableApple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:* Versions 10.13.6 security_update_2019-005 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:* Versions 10.13.6 security_update_2019-006 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:* Versions 10.13.6 security_update_2019-007 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:* Versions 10.13.6 security_update_2020-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-002:*:*:*:*:*:* Versions 10.13.6 security_update_2020-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-003:*:*:*:*:*:* Versions 10.13.6 security_update_2020-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:* Versions 10.14.6 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
  • 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:tvos:*:*:*:*:*:*:*:* Versions before 13.4.8 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 6.2.8 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS (Apple) Fixed in iOS 13.6 and iPadOS 13.6
  • Fix · CNA macOS (Apple) Fixed in macOS Catalina 10.15.6
  • Fix · CNA tvOS (Apple) Fixed in tvOS 13.4.8
  • Fix · CNA watchOS (Apple) Fixed in watchOS 6.2.8

Fixed in the same release

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

  • Release ·

    Apple iOS iOS 13.6 and iPadOS 13.6

    28 records Highest priority Priority CRITICAL 1 CRITICAL, 1 HIGH, 4 MEDIUM, 22 LOW

    Other records, highest priority first

    • TI-2020-07980 Out-of-bounds write in Apple iOSPriority CRITICAL 93
    • TI-2020-08007 An issue existed in the handling of environment variables.Priority HIGH 82
    • TI-2020-07969 Use after free in Apple iOSPriority MEDIUM 49
    Show all 28 records →
  • Release ·

    Apple tvOS tvOS 13.4.8

    23 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 17 LOW

    Other records, highest priority first

    Show all 23 records →
Show 2 more groups
  • Release ·

    Apple watchOS watchOS 6.2.8

    21 records Highest priority Priority MEDIUM 4 MEDIUM, 17 LOW

    Other records, highest priority first

    Show all 21 records →
  • Release ·

    Apple macOS macOS Catalina 10.15.6

    15 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM, 11 LOW

    Other records, highest priority first

    • TI-2020-08007 An issue existed in the handling of environment variables.Priority HIGH 82
    • TI-2020-07991 Out-of-bounds read in Apple macOSPriority MEDIUM 48
    • TI-2020-07940 Apple macOS: An application may be able to execute arbitrary code with kernel privilegesPriority MEDIUM 47
    Show all 15 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-9889
  2. 2026-10-03 Alias added: GHSA-h5hg-4532-wfr5

References

Advisory 5

  • 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 2382 →

Sources

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