UpHeron
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Servers and applications

CVE-2019-3814

It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.

Severity
Medium 6.8
Published
27 Mar 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.2.36.1, 2.3.4.1
Exploit chance
2.4% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
DovecotServers and applications · cpe:a:dovecot:dovecot
  • From 1.1.0 before 2.2.36.1
  • From 2.3.0 before 2.3.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-3814
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-3814