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CVE-2004-2771
The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute…
High7.5EPSS 6.9%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.
Timeline
ID reserved
By redhat
- 3 years later
· 3 years later
Published
- 10 years later
· 10 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 | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 6.9% · top 5.9% of all CVEs (8 Nov 2026)
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 (8)
- http://linux.oracle.com/errata/ELSA-2014-1999.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3105 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 61693 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=278748 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20141216 mailx issues (CVE-2004-2771, CVE-2014-7844) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 60940 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 61585 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2014:1999 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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-2004-2771)Record last updated .