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NVD Vulnerability Details :

CVE-2025-59032

Analyzed

Source-security@open-xchange.com

Published At-27 Mar, 2026 | 09:16

Updated At-30 Apr, 2026 | 17:47

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Type: Secondary

Version: 3.1

Base score: 7.5

Base severity: HIGH

Vector:

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

CPE Matches

Dovecot

>>dovecot>>Versions before 2.4.3(exclusive)

cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*

Open-Xchange AG

>>dovecot>>Versions before 3.1.3(exclusive)

cpe:2.3:a:open-xchange:dovecot:*:*:*:*:pro:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-20	Secondary	security@open-xchange.com
NVD-CWE-noinfo	Primary	nvd@nist.gov

CWE ID: CWE-20

Type: Secondary

Source: security@open-xchange.com

CWE ID: NVD-CWE-noinfo

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	Resource
https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json	security@open-xchange.com	Vendor Advisory

Hyperlink: https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json

Source: security@open-xchange.com

Resource:

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History