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CVE-2016-9920
steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is…
High7.5EPSS 5.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.
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)
- 5.6% · top 7.1% of all CVEs (2 Nov 2026)
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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 (5)
- https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ (opens in a new tab)x_refsource_MISCx_transferred
- 94858 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20161208 roundcube code execution via mail() (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201612-44 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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)
Record last updated .