This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
The JSON encoder in Dovecot before 126.96.36.199 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
CVSS 3.x Severity and Metrics:
CVSS 2.0 Severity and Metrics: