CVE-2012-2140
Mail Gem Improper Input Validation vulnerability
CVE-2012-2140 is a high vulnerability (CVSS 7.5) in Rubygems Mail Gem, published July 18, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.47%, the 91st percentile. Fixed in mail 2.4.3.
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
Exploit likelihood
What each source reports
NVD Score used
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
CVE-2012-2140- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
CVE-2012-2140- Updated
- 2026-11-02
EUVDEUVD-2017-0304 No score
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
EUVD-2017-0304- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rp63-jfmw-532w No score
Mail Gem Improper Input Validation vulnerability
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
GHSA-rp63-jfmw-532w- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV No score
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
CVE-2012-2140- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-2140 No score
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
DEBIAN-CVE-2012-2140- Updated
- 2026-11-02
OSVGHSA-rp63-jfmw-532w No score
Mail Gem Improper Input Validation vulnerability
The Mail gem before 2.4.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in a (1) sendmail or (2) exim delivery.
- Record
GHSA-rp63-jfmw-532w- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mailRubyGems |
before 2.4.3 | 2.4.3 |
ruby-mailDebian:12 |
before 2.4.4-1 | 2.4.4-1 |
ruby-mailDebian:13 |
before 2.4.4-1 | 2.4.4-1 |
ruby-mailDebian:14 |
before 2.4.4-1 | 2.4.4-1 |
mailRubyGems |
before 2.4.3, plus listed versions 1.0.01.1.01.2.11.2.51.2.6 Show 45 moreShow less1.2.81.2.91.3.01.3.11.3.21.3.31.3.41.3.51.4.01.4.11.4.21.4.31.5.01.5.11.5.21.5.31.5.41.6.02.0.32.0.52.1.02.1.12.1.22.1.32.1.52.1.5.12.1.5.22.1.5.32.2.02.2.12.2.102.2.112.2.122.2.132.2.142.2.152.2.162.2.172.2.182.2.192.2.22.2.202.2.32.2.42.2.5 |
2.4.3 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
bugzilla.redhat.com/show_bug.cgi?id=816352
lists.fedoraproject.org/pipermail/package-announce/2012-May/080648.html
github.com/mikel/mail/commit/ac56f03bdfc30b379aeecd4ff317d08fdaa328c2
openwall.com/lists/oss-security/2012/04/25/8
bugzilla.novell.com/show_bug.cgi?id=759092
Show 9 moreShow less
secunia.com/advisories/48970
nvd.nist.gov/vuln/detail/CVE-2012-2140
security-tracker.debian.org/tracker/CVE-2012-2140
Left out here: 12 versions. The JSON record has them.