Improper Handling of Values Affecting dovecot package, versions [,2.4.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (22nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-DOVECOT-15917503
  • published6 Apr 2026
  • disclosed27 Mar 2026
  • creditUnknown

Introduced: 27 Mar 2026

NewCVE-2025-59032  (opens in a new tab)
CWE-229  (opens in a new tab)

How to fix?

Upgrade dovecot to version 2.4.3 or higher.

Overview

Affected versions of this package are vulnerable to Improper Handling of Values via the ManageSieve AUTHENTICATE command when handling a crafted SASL initial response. An attacker can cause the service to crash repeatedly by sending specially crafted authentication data.

CVSS Base Scores

version 4.0
version 3.1