UpHeron
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Servers and applications

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.

Severity
Medium 6.8
Published
4 Sept 2014
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
5.3% in the next 30 daysHigher than 92% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
EximServers and applications · cpe:a:exim:exim
  • Version 4.80.1
  • Version 4.80
  • Version 4.77
  • Version 4.76
All 51 release lines
  • Every version up to 4.82
  • Version 4.00
  • Version 4.01
  • Version 4.02
  • Version 4.03
  • Version 4.04
  • Version 4.05
  • Version 4.10
  • Version 4.11
  • Version 4.12
  • Version 4.14
  • Version 4.20
  • Version 4.21
  • Version 4.22
  • Version 4.23
  • Version 4.24
  • Version 4.30
  • Version 4.31
  • Version 4.32
  • Version 4.33
  • Version 4.34
  • Version 4.40
  • Version 4.41
  • Version 4.42
  • Version 4.43
  • Version 4.44
  • Version 4.50
  • Version 4.51
  • Version 4.52
  • Version 4.53
  • Version 4.54
  • Version 4.60
  • Version 4.61
  • Version 4.62
  • Version 4.63
  • Version 4.64
  • Version 4.65
  • Version 4.66
  • Version 4.67
  • Version 4.68
  • Version 4.69
  • Version 4.70
  • Version 4.71
  • Version 4.72
  • Version 4.73
  • Version 4.74
  • Version 4.75
  • Version 4.76
  • Version 4.77
  • Version 4.80
  • Version 4.80.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-2957
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-2957