Name: CVE-2020-7046: Loop with Unreachable Exit Condition
Creator: Rapid7
Published: 2020-02-12T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-7046, CWE-835, CVSS 7.5, EPSS 0.51264

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade dovecot	Aug 22, 2024	Feb 12, 2020
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Feb 12, 2020
Freebsd	—	Upgrade dovecot	Feb 13, 2020	Feb 13, 2020
Huawei Euleros 2_0_sp8	—	Upgrade dovecot-mysqlUpgrade dovecotUpgrade dovecot-pigeonhole	Aug 31, 2020	Feb 12, 2020
Suse	—	Upgrade dovecot23-fts-squatUpgrade dovecot23Upgrade dovecot23-ftsUpgrade dovecot23-fts-solrUpgrade dovecot23-backend-pgsqlUpgrade dovecot23-develUpgrade dovecot23-fts-luceneUpgrade dovecot23-backend-mysqlUpgrade dovecot23-backend-sqlite	Feb 4, 2022	Feb 12, 2020

Prioritise with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence