CVE-2017-14230: Cyrus Imap

Critical severity, CVSS 9.1. EPSS: 2.2% chance of exploitation in the next 30 days.

In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.

Affected products

• Cyrus Imap: up to and including 3.0.3

Published 2017-09-10. Last modified 2026-06-17.