CVE-2014-2957

CVE-2014-2957 is a medium-severity vulnerability in Exim with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

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.

Frequently asked questions

What is CVE-2014-2957?
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.
How severe is CVE-2014-2957?
CVE-2014-2957 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2014-2957 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2957?
CVE-2014-2957 primarily affects Exim. In total, 51 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2957?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2957 published?
CVE-2014-2957 was published on 2014-09-04 and last updated on 2026-06-17.

References

Affected products (51)

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