{"id":"CVE-2021-42138","aliases":["EUVD-2021-29121","GHSA-5c3c-76cf-7hhm"],"status":"published","title":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to...","description":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.006,"percentile":0.49192,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-331"],"published":"2021-12-20T20:19:10Z","modified":"2026-06-17T04:09:24Z","products":[{"vendor":"thales","product":"safenet authentication service"},{"vendor":"thales cpl","product":"safenet authentication service"},{"vendor":"thalesgroup","product":"safenet_windows_logon_agent"}],"references":[{"url":"https://supportportal.gemalto.com/csm?sys_kb_id=a52bd13adbff7010f0e322080596194a\u0026id=kb_article_view\u0026sysparm_rank=1\u0026sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955","tags":["x_refsource_MISC","x_transferred","Permissions Required"]},{"url":"https://supportportal.gemalto.com/csm?sys_kb_id=e8397662dbb7fc10520c4705059619eb\u0026id=kb_article_view\u0026sysparm_rank=2\u0026sysparm_tsqueryId=b3bdd932db33b010f0e3220805961955","tags":["x_refsource_MISC","x_transferred","Permissions Required"]},{"url":"https://cpl.thalesgroup.com/support/security-updates","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42138"},{"url":"https://github.com/advisories/GHSA-5c3c-76cf-7hhm"}],"sources":{"cve":[{"id":"CVE-2021-42138","description":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.","status":"published","published":"2021-12-20T20:19:10Z","modified":"2024-08-04T03:30:37.956Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:58.359368Z"}],"euvd":[{"id":"EUVD-2021-29121","description":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.","status":"published","published":"2021-12-20T20:19:10Z","modified":"2024-08-04T03:30:37Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:24:16.217613Z"}],"ghsa":[{"id":"GHSA-5c3c-76cf-7hhm","title":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to...","description":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.","status":"published","published":"2021-12-21T00:00:28Z","modified":"2023-02-01T05:06:59Z","cwes":["CWE-331"],"updated_at":"2026-11-02T14:50:27.906349Z"}],"nvd":[{"id":"CVE-2021-42138","description":"A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.","status":"published","published":"2021-12-20T21:15:08.79Z","modified":"2026-06-17T04:09:24.783Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T14:07:02.566991Z"}]}}