CVE-2020-9918

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
ApplemacOS>= unspecified, < macOS Catalina 10.15.6
AppletvOS>= unspecified, < tvOS 13.4.8
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-2020-99197.8A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6CVE-2020-99209.1A path handling issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, watchCVE-2020-99217.0A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious applicatioCVE-2020-99226.5A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, CVE-2020-99237.8A 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 malCVE-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-2020-9918: Critical severity, CVSS 9.8 | Vulnix