{"id":"CVE-2016-0634","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-0634","generatedAt":"2026-10-28T03:22:08.807Z","title":"The expansion of '\\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.","description":"The expansion of '\\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.","published":"2017-08-28T15:29:01.000Z","lastModified":"2026-06-17T00:37:54.000Z","status":"Modified","sourceIdentifier":"secalert_us@oracle.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":["gnu/bash"],"epss":{"score":0.06019,"percentile":0.93294,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (6.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2017-0725.html","source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/16/12","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/16/8","tags":["Mailing List","Patch","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/18/11","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/19/7","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/20/1","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/27/9","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/29/27","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/07/6","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/10/3","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/10/4","tags":["Mailing List","Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://www.securityfocus.com/bid/92999","tags":["Third Party Advisory","VDB Entry"],"source":"secalert_us@oracle.com"},{"url":"https://access.redhat.com/errata/RHSA-2017:1931","source":"secalert_us@oracle.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1377613","tags":["Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"secalert_us@oracle.com"},{"url":"https://security.gentoo.org/glsa/201612-39","tags":["Third Party Advisory"],"source":"secalert_us@oracle.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0725.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/16/12","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/16/8","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/18/11","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/19/7","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/20/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/27/9","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/09/29/27","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/07/6","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/10/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/10/10/4","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/92999","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1931","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1377613","tags":["Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201612-39","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-0634","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}