CVE-2020-27897

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Metrics

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

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Apr 2, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-278985.5A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. An attacker may be able tCVE-2020-278997.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1,CVE-2020-27906.5Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Pluggable Auth). Supported versions that are affected are 5.7.CVE-2020-279005.5An issue existed in the handling of snapshots. The issue was resolved with improved permissions logic. This issue is fixed in macOS Big Sur CVE-2020-279016.3A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, SecuriCVE-2020-279024.6An authentication issue was addressed with improved state management. This issue is fixed in iOS 14.2 and iPadOS 14.2. A person with physicaCVE-2020-279037.8This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to gain elCVE-2020-279047.8A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big SuCVE-2020-279057.8A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS CVE-2020-279068.8Multiple integer overflows were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1. A remote attacker mayCVE-2020-279077.8A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 CCVE-2020-279087.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Cata
CVE-2020-27897: High severity, CVSS 7.8 | Vulnix