{"id":"CVE-2021-31859","aliases":["EUVD-2021-18734","GHSA-853p-6g7x-mjxh"],"status":"published","title":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user...","description":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user privilege escalation by overwriting the executable file via an alternative data stream.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00333,"percentile":0.26945,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-732"],"published":"2021-07-14T16:38:13Z","modified":"2026-06-17T03:52:21Z","products":[{"vendor":"ysoft","product":"safeq"}],"references":[{"url":"https://www.ysoft.com/en","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.ysoft.com/en/legal/ysoft-safeq-flexispooler","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31859"},{"url":"https://github.com/advisories/GHSA-853p-6g7x-mjxh"}],"sources":{"cve":[{"id":"CVE-2021-31859","description":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user privilege escalation by overwriting the executable file via an alternative data stream.","status":"published","published":"2021-07-14T16:38:13Z","modified":"2024-08-03T23:10:30.83Z","updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18734","description":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user privilege escalation by overwriting the executable file via an alternative data stream.","status":"published","published":"2021-07-14T16:38:13Z","modified":"2024-08-03T23:10:30Z","updated_at":"2026-11-03T03:24:37.97373Z"}],"ghsa":[{"id":"GHSA-853p-6g7x-mjxh","title":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user...","description":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user privilege escalation by overwriting the executable file via an alternative data stream.","status":"published","published":"2022-05-24T19:07:58Z","modified":"2023-01-27T05:03:14Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:42:12.225813Z"}],"nvd":[{"id":"CVE-2021-31859","description":"Incorrect privileges in the MU55 FlexiSpooler service in YSoft SafeQ 6 6.0.55 allows local user privilege escalation by overwriting the executable file via an alternative data stream.","status":"published","published":"2021-07-14T17:15:08.127Z","modified":"2026-06-17T03:52:21.797Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","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-732"],"updated_at":"2026-11-02T14:06:55.747384Z"}]}}