CVE-2003-1154

CVE-2003-1154 describes a bypass vulnerability in Clearswift MAILsweeper for SMTP version 4.3. Remote attackers can exploit this by sending a mail message containing a malformed ZIP attachment, allowing them to circumvent the product's virus protection, as demonstrated by certain MIMAIL virus variants. With a CVSS score of 7.5, this vulnerability is considered high severity, requiring no authentication and having low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. While the EPSS score is low, indicating minimal current exploitation probability, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.