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Servers and applications

CVE-2020-12100

In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.

Severity
High 7.5
Published
12 Aug 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.3.11.3
Sources
NVD

Affected software

SoftwareAffected versions
DovecotServers and applications · cpe:a:dovecot:dovecot
  • Every version before 2.3.11.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-12100
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-12100