CVE-2026-33607: Uncontrolled Resource Consumption in Open-Xchange GmbH OX Dovecot Pro
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are known.
CVE-2026-33607: Uncontrolled Resource Consumption in Open-Xchange GmbH OX Dovecot Pro
Description
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are known.
CVSS v3.1
Score 4.3medium
Affected software
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-03-23T12:58:38.267Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a916f87acd9273b49cf91c1
Added to database: 08/28/2026, 11:22:47 UTC
Last updated: 08/28/2026, 11:22:47 UTC
Views: 1
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