{"id":"CVE-2020-3866","aliases":["EUVD-2020-25131","GHSA-gx6x-fhpp-hw29"],"status":"published","title":"This was addressed with additional checks by Gatekeeper on files mounted through a network share....","description":"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.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00681,"percentile":0.52865,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2020-02-27T20:45:05Z","modified":"2026-06-17T03:19:10Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/HT210919","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3866"},{"url":"https://github.com/advisories/GHSA-gx6x-fhpp-hw29"}],"sources":{"cve":[{"id":"CVE-2020-3866","description":"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.","status":"published","published":"2020-02-27T20:45:05Z","modified":"2024-08-04T07:44:51.217Z","updated_at":"2026-11-02T14:35:51.923913Z"}],"euvd":[{"id":"EUVD-2020-25131","description":"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.","status":"published","published":"2020-02-27T20:45:05Z","modified":"2024-08-04T07:44:51Z","updated_at":"2026-11-03T03:08:08.458165Z"}],"ghsa":[{"id":"GHSA-gx6x-fhpp-hw29","title":"This was addressed with additional checks by Gatekeeper on files mounted through a network share....","description":"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.","status":"published","published":"2022-05-24T17:09:48Z","modified":"2023-01-29T05:01:31Z","cwes":["CWE-863"],"updated_at":"2026-11-02T14:44:50.787695Z"}],"nvd":[{"id":"CVE-2020-3866","description":"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.","status":"published","published":"2020-02-27T21:15:18.07Z","modified":"2026-06-17T03:19:10.177Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:05:54.796125Z"}]}}