{"id":"CVE-2021-42056","aliases":["EUVD-2021-29043","GHSA-26hh-jgf5-3gmg"],"status":"published","title":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure...","description":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01025,"percentile":0.64026,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-59"],"published":"2022-06-24T16:14:23Z","modified":"2026-06-17T04:09:14Z","exploits":[{"source":"pocgithub","id":"z00z00z00/Safenet_SAC_CVE-2021-42056","title":"z00z00z00/Safenet_SAC_CVE-2021-42056","date":"2021-11-18","url":"https://github.com/z00z00z00/Safenet_SAC_CVE-2021-42056"}],"products":[{"vendor":"thalesgroup","product":"safenet_authentication_client"}],"references":[{"url":"https://github.com/z00z00z00/Safenet_SAC_CVE-2021-42056","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42056"},{"url":"https://github.com/advisories/GHSA-26hh-jgf5-3gmg"}],"sources":{"cve":[{"id":"CVE-2021-42056","description":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.","status":"published","published":"2022-06-24T16:14:23Z","modified":"2024-08-04T03:22:25.925Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29043","description":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.","status":"published","published":"2022-06-24T16:14:23Z","modified":"2024-08-04T03:22:25Z","updated_at":"2026-11-03T03:24:16.784119Z"}],"ghsa":[{"id":"GHSA-26hh-jgf5-3gmg","title":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure...","description":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.","status":"published","published":"2022-06-25T00:00:52Z","modified":"2023-01-27T05:05:19Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:42:40.370534Z"}],"nvd":[{"id":"CVE-2021-42056","description":"Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.","status":"published","published":"2022-06-24T17:15:08.467Z","modified":"2026-06-17T04:09:14.19Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}