CVE-2025-59032 HIGH

CVE-2025-59032

Vendor Open-Xchange Gmbh
Product OX Dovecot Pro
Weakness CWE-20 · Input validation
Published March 27, 2026
Last update June 30, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
June 30, 2026 Record updated