CVE-2025-59032

HIGH

OX Dovecot Pro < 2.4.0 and < 3.1.0 - Denial of Service via ManageSieve AUTHENTICATE Command

Title source: llm
STIX 2.1

Description

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed version. No publicly available exploits are known.

References (18)

Core 18
Core References

Scores

CVSS v3 7.5
EPSS 0.0070
EPSS Percentile 49.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20 CWE-229
Status published
Products (4)
dovecot/dovecot < 2.4.3
open-xchange/dovecot < 3.1.3
Open-Xchange GmbH/OX Dovecot Pro < 2.4.0
Open-Xchange GmbH/OX Dovecot Pro < 3.1.0
Published Mar 27, 2026
Tracked Since Mar 27, 2026