{"id":"CVE-2020-9991","details":"This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, iCloud for Windows 7.21, tvOS 14.0. A remote attacker may be able to cause a denial of service.","modified":"2026-03-15T22:38:43.609593Z","published":"2020-12-08T22:15:19.273Z","references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT211931"},{"type":"ADVISORY","url":"https://support.apple.com/kb/HT211846"},{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2020/Dec/32"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT211843"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT211844"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT211847"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT211850"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"7.21"}]},{"events":[{"introduced":"11.0"},{"fixed":"11.4"}]},{"events":[{"introduced":"0"},{"fixed":"14.0"}]},{"events":[{"introduced":"0"},{"fixed":"14.0"}]},{"events":[{"introduced":"0"},{"fixed":"11.0.1"}]},{"events":[{"introduced":"0"},{"fixed":"14.0"}]},{"events":[{"introduced":"0"},{"fixed":"7.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-9991.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}