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TI-2020-16988 Aliases CVE-2020-27933GHSA-qvcp-2pcx-m92g

Out-of-bounds write in Apple iOS and iPadOS

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

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, iCloud for Windows 7.20, watchOS 6.2.8, tvOS 13.4.8, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing a maliciously crafted image may lead to arbitrary code execution.

Why it matters now

EPSS 0.0103 63rd percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 13.6macOS (Apple): 10.15, 13.4, 6.2 +1

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 13.613.6Patch availableCNA
ApplemacOSbefore 10.1510.15Patch availableCNA
ApplemacOSbefore 13.413.4Patch availableCNA
ApplemacOSbefore 6.26.2Patch availableCNA
ApplemacOSbefore 7.207.20Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 13.6 Fixed in 13.6 Patch available CNA
  • macOS VendorApple Affected before 10.15 Fixed in 10.15 Patch available CNA
  • macOS VendorApple Affected before 13.4 Fixed in 13.4 Patch available CNA
  • macOS VendorApple Affected before 6.2 Fixed in 6.2 Patch available CNA
  • macOS VendorApple Affected before 7.20 Fixed in 7.20 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*before 7.20VulnerableApple
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:*:*:*:*:*:*:*:*10.15 to before 10.15.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*10.15.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:*10.15.6 supplemental_updateVulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 13.4.8VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 6.2.8VulnerableApple
  • cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.20 Vulnerable ·Apple
  • 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 10.15 to before 10.15.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:* Versions 10.15.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:* Versions 10.15.6 supplemental_update 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 and iPadOS (Apple) Fixed in 13.6
  • Fix · CNA macOS (Apple) Fixed in 10.15
  • Fix · CNA macOS (Apple) Fixed in 13.4
  • Fix · CNA macOS (Apple) Fixed in 6.2
  • Fix · CNA macOS (Apple) Fixed in 7.20

Fixed in the same release

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

  • Release ·

    Apple macOS 10.15

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    Show all 3 records →
  • Release ·

    Apple iOS and iPadOS, macOS 13.4, 13.6 and 2 more versions

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2020-07999 Use after free in Apple iOS and iPadOSPriority LOW 36
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27933
  2. 2026-10-03 Alias added: GHSA-qvcp-2pcx-m92g

References

Advisory 5

  • TI-2019-06084 Type confusion in Apple iOS KEVCVSS 3.1HIGH 8.8
  • TI-2020-16987 Type confusion in Apple watchOS KEVCVSS 3.1HIGH 7.8
  • TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code execution CVSS 3.1CRITICAL 9.8
  • TI-2018-03187 Memory corruption in Apple WebKit CVSS 3.1HIGH 8.8
  • TI-2018-03118 Memory corruption in Apple WebKit CVSS 3.0HIGH 8.8
  • TI-2018-03361 Memory corruption in iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows CVSS 3.0HIGH 8.8
See all 448 →

Sources

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