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TI-2021-11091 Aliases CVE-2021-30707GHSA-5xgj-4p79-5g3g

Buffer overflow in Apple iOS and iPadOS

Priority MEDIUM 42CWE-120Published · Updated

Key facts

Attack vector
Network
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-120 and the CVSS impact.

Summary

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. Processing a maliciously crafted audio file may lead to arbitrary code execution.

Why it matters now

EPSS 0.01861 79th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 14.6macOS (Apple): 11.4, 14.6, 7.5

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 14.614.6Patch availableCNA
ApplemacOSbefore 11.411.4Patch availableCNA
ApplemacOSbefore 14.614.6Patch availableCNA
ApplemacOSbefore 7.57.5Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 14.6 Fixed in 14.6 Patch available CNA
  • macOS VendorApple Affected before 11.4 Fixed in 11.4 Patch available CNA
  • macOS VendorApple Affected before 14.6 Fixed in 14.6 Patch available CNA
  • macOS VendorApple Affected before 7.5 Fixed in 7.5 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 14.6VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 14.6VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*11.0 to before 11.4VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 14.6VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 7.5VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 7.5 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 14.6
  • Fix · CNA macOS (Apple) Fixed in 11.4
  • Fix · CNA macOS (Apple) Fixed in 14.6
  • Fix · CNA macOS (Apple) Fixed in 7.5

Fixed in the same release

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

  • Release ·

    Apple macOS 11.4

    70 records Highest priority Priority CRITICAL 1 CRITICAL, 7 MEDIUM, 62 LOW

    Other records, highest priority first

    • TI-2021-11096 Missing authorization in Apple macOSPriority CRITICAL 93
    • TI-2021-11104 Apple macOS: An attacker in a privileged network position may be able to leak sensitive…Priority MEDIUM 50
    • TI-2021-11062 Apple macOS: A remote attacker may be able to cause unexpected application termination or…Priority MEDIUM 48
    Show all 70 records →
  • Release ·

    Apple iOS and iPadOS 14.6

    46 records Highest priority Priority MEDIUM 4 MEDIUM, 42 LOW

    Other records, highest priority first

    • TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2021-11128 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2021-11118 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    Show all 46 records →
Show 2 more groups
  • Release ·

    Apple macOS 14.6

    30 records Highest priority Priority CRITICAL 2 CRITICAL, 4 MEDIUM, 24 LOW

    Other records, highest priority first

    • TI-2021-11050 Out-of-bounds write in Apple macOSPriority CRITICAL 97
    • TI-2021-11048 Integer overflow in Apple macOSPriority CRITICAL 97
    • TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 30 records →
  • Release ·

    Apple macOS 7.5

    29 records Highest priority Priority MEDIUM 4 MEDIUM, 25 LOW

    Other records, highest priority first

    • TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2021-11128 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2021-11118 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    Show all 29 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-30707
  2. 2026-10-03 Alias added: GHSA-5xgj-4p79-5g3g

References

Advisory 4

  • 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