CVE-2026-27858
Published: Mar 27, 2026
Modified: Mar 27, 2026
CVSS v3.1
7.5
Description
Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No publicly available exploits are known.
| Vendor | Product | Versions |
|---|---|---|
Open-Xchange GmbH | OX Dovecot Pro | affected 0 - <= 2.3.0affected 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:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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