Apple · Macos Catalina · CVE-2020-3866
**Name of the Vulnerable Software and Affected Versions**
macOS Catalina versions prior to 10.15.3
**Description**
The issue allows an attacker to bypass Gatekeeper by searching for and opening a file from an attacker-controlled NFS mount. This was addressed with additional checks by Gatekeeper on files mounted through a network share.
**Recommendations**
For macOS Catalina versions prior to 10.15.3, update to macOS Catalina 10.15.3 to resolve the issue. As a temporary workaround, consider restricting access to NFS mounts from untrusted sources to minimize the risk of exploitation.