CVE-2020-3866

This was addressed with additional checks by Gatekeeper on files mounted through a network share. This issue is fixed in macOS Catalina 10.15.3. Searching for and opening a file from an attacker controlled NFS mount may bypass Gatekeeper.

• https://support.apple.com/HT210919Release Notes, Vendor Advisory
• https://support.apple.com/HT210919Release Notes, Vendor Advisory

Published

Feb 27, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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• CVE-2020-3860A memory corruption issue was addressed with improved input …7.8
• CVE-2020-3861The issue was addressed with improved permissions logic. Thi…7.1
• CVE-2020-3862A denial of service issue was addressed with improved memory…6.5
• CVE-2020-3863A memory corruption issue was addressed with improved memory…7.8
• CVE-2020-3864A logic issue was addressed with improved validation. This i…7.8
• CVE-2020-3865Multiple memory corruption issues were addressed with improv…8.8
• CVE-2020-3867A logic issue was addressed with improved state management. …6.1
• CVE-2020-3868Multiple memory corruption issues were addressed with improv…8.8
• CVE-2020-3869An issue existed in the handling of the local user's self-vi…5.3
• CVE-2020-3870An out-of-bounds read was addressed with improved input vali…7.8
• CVE-2020-3871A memory corruption issue was addressed with improved memory…7.8
• CVE-2020-3872A memory initialization issue was addressed with improved me…5.5