CVE-2025-59028
Published: Mar 27, 2026
Modified: Mar 27, 2026
CVSS v3.1
5.3
Description
When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail. Invalid BASE64 data can be used to DoS a vulnerable server to break concurrent logins. Install fixed version or disable concurrency in login processes (heavy perfomance penalty on large deployments). No publicly available exploits are known.
| Vendor | Product | Versions |
|---|---|---|
Open-Xchange GmbH | OX Dovecot Pro | affected 0 - <= 3.1.0affected 0 - <= 2.4.0 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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