CVE-2026-40204 - Vulnerability Details - OpenCVE

None None None No publicly available exploits are known.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Open-Xchange GmbH

OX Dovecot Pro

unaffected

Version	Status	Constraints
`2.3.0`	affected	< 2.3.22.2
`3.0.0`	affected	< 3.0.7
`3.1.0`	affected	< 3.1.6

Open-Xchange GmbH

OX Dovecot CE

unaffected

Version	Status	Constraints
`2.3.0`	affected	< 2.4.5

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0003.json

History

Fri, 28 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 28 Aug 2026 14:00:00 +0000

Type	Values Removed	Values Added
Title		Improper Access Control in Open‑Xchange OX Dovecot

Fri, 28 Aug 2026 11:30:00 +0000

Type	Values Removed	Values Added
Description		None None None No publicly available exploits are known.
Weaknesses		CWE-284
References		https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0003.json
Metrics		cvssV3_1 `{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: OX

Published: 2026-08-28T10:12:23.236Z

Updated: 2026-08-28T14:56:40.510Z

Reserved: 2026-04-10T07:11:39.060Z

Link: CVE-2026-40204

Vulnrichment

Updated: 2026-08-28T14:56:36.074Z

NVD

Status : Received

Published: 2026-08-28T12:16:29.023

Modified: 2026-08-28T16:17:57.357

Link: CVE-2026-40204

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-28T13:45:17Z

Weaknesses

CWE-284

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