Vulnerabilities > CVE-2020-12618 - Unspecified vulnerability in Emclient EM Client
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
LOW Integrity impact
LOW Availability impact
NONE Summary
eM Client before 7.2.33412.0 automatically imported S/MIME certificates and thereby silently replaced existing ones. This allowed a man-in-the-middle attacker to obtain an email-validated S/MIME certificate from a trusted CA and replace the public key of the entity to be impersonated. This enabled the attacker to decipher further communication. The entire attack could be accomplished by sending a single email.