CVE-2026-40204: Improper Access Control in Open-Xchange GmbH OX Dovecot Pro
Description
CVE-2026-40204 is a low severity vulnerability in Open-Xchange GmbH's OX Dovecot Pro involving improper access control. It affects specific versions 2.3.0, 3.0.0, and 3.1.0 of the product. No public exploits are known, and there is no confirmed remediation or patch available at this time.
CVSS v3.1
Score 3.1low
Affected software
Open-Xchange GmbH
OX Dovecot Pro
Open-Xchange GmbH
OX Dovecot CE
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability relates to improper access control in OX Dovecot Pro by Open-Xchange GmbH. The CVSS score is 3.1, indicating low severity, with an attack vector over the network requiring high attack complexity and low privileges. The impact is limited to integrity loss without confidentiality or availability impact. The affected versions explicitly include 2.3.0, 3.0.0, and 3.1.0. No vendor advisory or patch information is provided, and no known exploits are publicly available.
Potential Impact
The vulnerability may allow limited integrity impact under specific conditions due to improper access control. There is no confidentiality or availability impact reported. The low CVSS score reflects a low risk in practical terms.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-04-10T07:11:39.060Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a916f8aacd9273b49cf9209
Added to database: 08/28/2026, 11:22:50 UTC
Last enriched: 09/10/2026, 02:52:46 UTC
Last updated: 10/13/2026, 18:48:19 UTC
Views: 86
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