CVE-2020-25275

7.5 highEPSS 4.7%

High (7.5). EPSS 4.7% chance of exploitation in the next 30 days.

Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2021-01-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

debian:debian_linux
dovecot:dovecot
fedoraproject:fedora

References

http://packetstormsecurity.com/files/160841/Dovecot-2.3.11.3-Denial-Of-Service.html
http://seclists.org/fulldisclosure/2021/Jan/18
http://www.openwall.com/lists/oss-security/2021/01/04/3
https://dovecot.org/pipermail/dovecot-news/2021-January/000451.html
https://dovecot.org/security

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