CVE-2026-40015 (GCVE-0-2026-40015)
Vulnerability from cvelistv5
Published
2026-08-28 10:12
Modified
2026-08-28 15:03
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
Summary
An attacker that has valid credentials can open many connections to the imap-hibernate service and send invalid commands, which can intermittently cause an out-of-bounds read and crash the process. The crash interrupts hibernated IMAP sessions handled by the affected process, which can cause degradation of service for IMAP. Disable IMAP hibernation. Update to non-vulnerable version. No publicly available exploits are known.
References
Impacted products
Vendor Product Version
Open-Xchange GmbH OX Dovecot Pro Version: 2.3.0   ≤
Version: 3.0.0   ≤
Version: 3.1.0   ≤
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