CVE-2020-9923

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, watchOS 6.2.8. A malicious application may be able to execute arbitrary code with system privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
AppleiOS>= unspecified, < iOS 13.6 and iPadOS 13.6
ApplewatchOS>= unspecified, < watchOS 6.2.8

References

Timeline

Published
Oct 16, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-99247.5A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6. A remote attacker may be able to CVE-2020-99256.1A logic issue was addressed with improved state management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, SafCVE-2020-99267.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS CVE-2020-99277.8A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6. An application may beCVE-2020-99287.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. An applicatioCVE-2020-99297.1A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A local user may be abCVE-2020-99307.1An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 CVE-2020-99317.5A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. A remote attacker mCVE-2020-99328.8A memory corruption issue was addressed with improved validation. This issue is fixed in Safari 13.0.1, iOS 13.1 and iPadOS 13.1, tvOS 13. PCVE-2020-99333.3An authorization issue was addressed with improved state management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6CVE-2020-99345.5An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.CVE-2020-99354.3A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6. A user may be unexpectedly logged
CVE-2020-9923: High severity, CVSS 7.8 | Vulnix