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CVE-2016-0634
The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell…
High7.5EPSS 6.0%
- Published
- Updated
- Reserved
- Assigned by
- oracle
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.
Timeline
ID reserved
By oracle
- 21 months later
· 21 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.0% · top 6.6% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (15)
- [oss-security] 20160927 Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160916 CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:0725 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20160929 Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160920 Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 92999 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2017:1931 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20161007 Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160918 Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160919 Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20161010 Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20160916 Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201612-39 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1377613 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20161010 RE: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-0634)Record last updated .