CVE-2020-3877

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3, watchOS 6.1.2. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
ApplemacOS>= unspecified, < macOS Catalina 10.15.3
ApplewatchOS>= unspecified, < watchOS 6.1.2

References

Timeline

Published
Feb 27, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-38787.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5,CVE-2020-38807.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 6.1.2, iOS 13.3.1 and iPadOS 13.3.1, tvOSCVE-2020-38815.5A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to view CVE-2020-38826.5This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.5. Importing a maliciously crafted calendar invitCVE-2020-38838.8This issue was addressed with improved checks. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6CVE-2020-38846.1An injection issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A remote attacker may be able to cCVE-2020-38854.3A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for CVE-2020-38867.8A use after free issue was addressed with improved memory management. This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-00CVE-2020-38874.3A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for CVE-2020-38884.3A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.4 and iPadOS 13.4. A maliciously crafted page may inteCVE-2020-38895.5A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to read CVE-2020-38905.3The issue was addressed with improved deletion. This issue is fixed in iOS 13.4 and iPadOS 13.4. Deleted messages groups may still be sugges
CVE-2020-3877: High severity, CVSS 7.5 | Vulnix