{"id":"CVE-2018-9862","aliases":["EUVD-2018-21454","GHSA-xpc5-66vp-j2wh"],"status":"published","title":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain...","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00423,"percentile":0.36848,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-838"],"published":"2018-04-09T16:00:00Z","modified":"2026-10-24T10:49:35Z","products":[{"vendor":"hyper","product":"runv"}],"references":[{"url":"http://www.securityfocus.com/bid/103738","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/hyperhq/hyperstart/pull/348","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9862"},{"url":"https://github.com/advisories/GHSA-xpc5-66vp-j2wh"}],"sources":{"cve":[{"id":"CVE-2018-9862","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","status":"published","published":"2018-04-09T16:00:00Z","modified":"2024-08-05T07:24:56.341Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-21454","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","status":"published","published":"2018-04-09T16:00:00Z","modified":"2024-08-05T07:24:56Z","updated_at":"2026-11-03T02:40:00.040327Z"}],"ghsa":[{"id":"GHSA-xpc5-66vp-j2wh","title":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain...","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","status":"published","published":"2022-05-13T01:53:57Z","modified":"2023-02-02T05:02:15Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-838"],"updated_at":"2026-11-02T14:51:23.915291Z"}],"nvd":[{"id":"CVE-2018-9862","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","status":"published","published":"2018-04-09T16:29:00.273Z","modified":"2026-06-17T02:07:18.633Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/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-838"],"updated_at":"2026-11-02T14:04:24.700429Z"}],"osv":[{"id":"CVE-2018-9862","description":"util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a \"docker exec\" command with that value in the -u argument, a similar issue to CVE-2016-3697.","status":"published","published":"2018-04-09T16:29:00.273Z","modified":"2026-10-24T10:49:35.134679714Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.051046Z"}]}}