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TI-2020-07901 Aliases CVE-2020-9823GHSA-4ff7-c847-2h7q

Apple iOS: Users removed from an iMessage conversation may still be able to alter state

Priority LOW 34Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

This issue was addressed with improved checks. This issue is fixed in iOS 13.5 and iPadOS 13.5. Users removed from an iMessage conversation may still be able to alter state.

Why it matters now

EPSS 0.00811 57th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 13.5 and iPadOS 13.5

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore iOS 13.5 and iPadOS 13.5iOS 13.5 and iPadOS 13.5Patch availableCNA
  • iOS VendorApple Affected before iOS 13.5 and iPadOS 13.5 Fixed in iOS 13.5 and iPadOS 13.5 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 13.5VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 13.5VulnerableApple
  • 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

Remediation

  • Fix · CNA iOS (Apple) Fixed in iOS 13.5 and iPadOS 13.5

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
    Show all 42 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-9823
  2. 2026-10-03 Alias added: GHSA-4ff7-c847-2h7q

References

Advisory 1

  • 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