{"id":"CVE-2021-1871","details":"A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..","modified":"2026-03-15T14:42:15.646267Z","published":"2021-04-02T19:15:20.663Z","related":["ALSA-2021:4381","MGASA-2021-0181","SUSE-SU-2021:1430-1","SUSE-SU-2021:1499-1","SUSE-SU-2021:1990-1","SUSE-SU-2022:0142-1","SUSE-SU-2022:0182-1","SUSE-SU-2022:0182-2","SUSE-SU-2022:0183-1","openSUSE-SU-2021:0637-1","openSUSE-SU-2022:0182-1"],"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1871"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4923"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212146"},{"type":"ADVISORY","url":"https://support.apple.com/en-us/HT212147"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-1871.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"14.4"}]},{"events":[{"introduced":"0"},{"fixed":"14.4"}]},{"events":[{"introduced":"10.15"},{"fixed":"10.15.7"}]},{"events":[{"introduced":"0"},{"last_affected":"10.15.7-NA"}]},{"events":[{"introduced":"0"},{"last_affected":"10.15.7-security_update_2020"}]},{"events":[{"introduced":"0"},{"last_affected":"10.15.7-supplemental_update"}]},{"events":[{"introduced":"11.0.1"},{"fixed":"11.2"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}