{"id":"CVE-2021-20251","details":"A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.","modified":"2026-04-09T07:23:47.500694Z","published":"2023-03-06T23:15:10.387Z","related":["SUSE-SU-2023:0122-1","SUSE-SU-2023:0126-1","SUSE-SU-2023:0160-1","SUSE-SU-2023:0162-1","SUSE-SU-2023:0163-1","SUSE-SU-2023:0164-1","SUSE-SU-2023:0222-1","SUSE-SU-2023:0620-1","openSUSE-SU-2024:12435-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202309-06"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230331-0005/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1929800"},{"type":"REPORT","url":"https://bugzilla.samba.org/show_bug.cgi?id=14611"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"a6fb418be7adccdd583a3b489b58023cfdd392ef"},{"fixed":"6cc6e233b5ceb2a579400f020b61c67ca7bbeb78"},{"introduced":"fbec737d9d3d992b54f52defcba62a304efef8f7"},{"fixed":"ab48448c650c96095fa183c3531a3dd244983664"}],"database_specific":{"versions":[{"introduced":"4.1.0"},{"fixed":"4.16.8"},{"introduced":"4.17.0"},{"fixed":"4.17.4"}]}}],"versions":["samba-4.17.0","samba-4.17.1","samba-4.17.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20251.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"37"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}