CVE-2025-59032 Affecting dovecot package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.7% (49th percentile)

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  • Snyk IDSNYK-UBUNTU1804-DOVECOT-15803098
  • published29 Mar 2026
  • disclosed27 Mar 2026

Introduced: 27 Mar 2026

CVE-2025-59032  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 dovecot.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dovecot package and not the dovecot package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1