{"id":"CVE-2021-30720","details":"A logic issue was addressed with improved restrictions. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. A malicious website may be able to access restricted ports on arbitrary servers.","modified":"2026-03-15T22:40:28.220004Z","published":"2021-09-08T14:15:08.600Z","related":["ALSA-2021:4381","MGASA-2021-0400","SUSE-SU-2021:2598-1","SUSE-SU-2021:2600-1","SUSE-SU-2021:2762-1","openSUSE-SU-2021:1101-1","openSUSE-SU-2021:2598-1"],"references":[{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212529"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212532"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212533"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212534"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212528"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"14.1.1"}]},{"events":[{"introduced":"0"},{"fixed":"14.6"}]},{"events":[{"introduced":"0"},{"fixed":"14.6"}]},{"events":[{"introduced":"11.0.1"},{"fixed":"11.4"}]},{"events":[{"introduced":"0"},{"fixed":"14.6"}]},{"events":[{"introduced":"0"},{"fixed":"7.5"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30720.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}]}