CVE-2025-59032

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:13498
https://access.redhat.com/errata/RHSA-2026:13830
https://access.redhat.com/errata/RHSA-2026:13857
https://access.redhat.com/errata/RHSA-2026:17602
https://access.redhat.com/errata/RHSA-2026:17625
https://access.redhat.com/errata/RHSA-2026:17626
https://access.redhat.com/errata/RHSA-2026:17628
https://access.redhat.com/errata/RHSA-2026:17630
https://access.redhat.com/errata/RHSA-2026:18053
https://access.redhat.com/errata/RHSA-2026:19149
https://access.redhat.com/errata/RHSA-2026:19364
https://access.redhat.com/errata/RHSA-2026:19453
https://access.redhat.com/errata/RHSA-2026:19455
https://access.redhat.com/errata/RHSA-2026:26564
https://access.redhat.com/security/cve/CVE-2025-59032
https://bugzilla.redhat.com/show_bug.cgi?id=2452172
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-59032.json

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-03-27 09:16

Updated : 2026-07-15 02:17

NVD link : CVE-2025-59032

Mitre link : CVE-2025-59032

CVE.ORG link : CVE-2025-59032

JSON object : View

Products Affected

open-xchange

dovecot

dovecot

dovecot

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo CWE-229

Improper Handling of Values

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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."}], "lastModified": "2026-07-15T02:17:30.307", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE209329-C5EA-4EE7-A23E-CD2EC061A9A4", "versionEndExcluding": "2.4.3"}, {"criteria": "cpe:2.3:a:open-xchange:dovecot:*:*:*:*:pro:*:*:*", "vulnerable": true, "matchCriteriaId": "F42BE52D-7DCD-474A-A2C8-9670C15BC878", "versionEndExcluding": "3.1.3"}], "operator": "OR"}]}], "sourceIdentifier": "security@open-xchange.com"}