Read the docs
TI-2020-08029 Aliases CVE-2020-9958GHSA-ggv4-hh76-gfg8

Out-of-bounds write in Apple iOS

Priority LOW 36CWE-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 14.0 and iPadOS 14.0. An application may be able to cause unexpected system termination or write kernel memory.

Why it matters now

EPSS 0.01131 66th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 14.0 and iPadOS 14.0

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore iOS 14.0 and iPadOS 14.0iOS 14.0 and iPadOS 14.0Patch availableCNA
  • iOS VendorApple Affected before iOS 14.0 and iPadOS 14.0 Fixed in iOS 14.0 and iPadOS 14.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 14.0VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 14.0VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.0 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS (Apple) Fixed in iOS 14.0 and iPadOS 14.0

Fixed in the same release

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

  • Release ·

    Apple iOS iOS 14.0 and iPadOS 14.0

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2020-08062 Apple iOS: An attacker in a privileged network position may be able to execute arbitrary…Priority LOW 39
    • TI-2020-08025 Cross-site scripting in Apple iOSPriority LOW 34
    • TI-2020-08019 Apple iOS: The screen lock may not engage after the specified time periodPriority LOW 30
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-9958
  2. 2026-10-03 Alias added: GHSA-ggv4-hh76-gfg8

References

Advisory 2

  • 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