vulnerability
Red Hat: CVE-2020-12100: CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Aug 12, 2020 | Sep 4, 2020 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Aug 12, 2020
Added
Sep 4, 2020
Modified
Mar 27, 2026
Description
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.
Solutions
redhat-upgrade-dovecotredhat-upgrade-dovecot-debuginforedhat-upgrade-dovecot-debugsourceredhat-upgrade-dovecot-develredhat-upgrade-dovecot-mysqlredhat-upgrade-dovecot-mysql-debuginforedhat-upgrade-dovecot-pgsqlredhat-upgrade-dovecot-pgsql-debuginforedhat-upgrade-dovecot-pigeonholeredhat-upgrade-dovecot-pigeonhole-debuginfo
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.