What’s Vulnerable › Vulnerabilities

CVE-2014-2957

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-09-04 · updated 2026-06-17
• Weakness: CWE-20

Description

The dmarc_process function in dmarc.c in Exim before 4.82.1, when EXPERIMENTAL_DMARC is enabled, allows remote attackers to execute arbitrary code via the From header in an email, which is passed to the expand_string function.

Affected products

• Exim: through 4.82; 4.00, 4.01, 4.02, 4.03, 4.04, 4.05 (+44)

References

• http://git.exim.org/exim.git/commitdiff/5b7a7c051c9ab9ee7c924a611f90ef2be03e0ad0
• http://www.openwall.com/lists/oss-security/2021/05/04/7
• https://lists.exim.org/lurker/message/20140528.122536.a31d60a4.en.html
• http://git.exim.org/exim.git/commitdiff/5b7a7c051c9ab9ee7c924a611f90ef2be03e0ad0
• http://www.openwall.com/lists/oss-security/2021/05/04/7
• https://lists.exim.org/lurker/message/20140528.122536.a31d60a4.en.html

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