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    CVE-2003-0121

    Clearswift MAILsweeper 4.x allows remote attackers to bypass attachment detection via an attachment that does not specify a MIME-Version header field, which is processed by some mail clients.

    Published:Mar 13, 2003
    Last Modified:Apr 16, 2026
    EPS:Mar 13, 2003
    EPSS Score:0.02952
    CVSS Score:7.5

    Affected Products

    Vendor
    Clearswift
    Product
    Mailsweeper

    Exploits

    https://www.exploit-db.com/exploits/22338

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2004-2328 (CVSS 5) — Clearswift MAILsweeper for SMTP before 4.3_13 allows remote attackers to cause a denial of service (infinite l…
    CVE-2004-0052 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2004-0161 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2003-1014 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2004-0051 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2003-1015 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2004-0162 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2003-1016 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2004-0053 (CVSS 7.5) — Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions…
    CVE-2003-0929 (CVSS 7.5) — Clearswift MAILsweeper before 4.3.15 does not properly detect and filter ZIP 6.0 encoded files, which allows r…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High