CVE-2020-10967: Dovecot

Medium severity, CVSS 5.3. EPSS: 8.2% chance of exploitation in the next 30 days.

In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.

Affected products

• Dovecot Dovecot: before 2.3.10.1 (fixed in 2.3.10.1)

Published 2020-05-18. Last modified 2026-06-17.