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Vulnerability record · CVE-2003-0121 · published 18 March 2003

CVE-2003-0121: Clearswift mailsweeper vulnerability

CClearswift · Mailsweeper

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.

7.5 CVSS 2.0 High EPSS 3.1% · top 12.9%
7.5CVSS 2.0 base score
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=104716030503607&w=2
http://www.securityfocus.com/archive/1/316311
http://www.securityfocus.com/bid/7044 PatchVendor Advisory
http://marc.info/?l=bugtraq&m=104716030503607&w=2
http://www.securityfocus.com/archive/1/316311
http://www.securityfocus.com/bid/7044 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-0234Clearswift mailsweeper memory buffer overflow vulnerabilityMultiple stack-based buffer overflows in the get_header function in header.c for LHA 1.14, as used in products such as Barracuda Spam Firewall, allow…EPSS 10%7.5CVE-2003-1015Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use whitespace …EPSS 2.4%7.5CVE-2003-1016Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use malformed q…EPSS 2.4%7.5CVE-2004-0051Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use non-standar…EPSS 2.4%7.5CVE-2004-0052Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use non-standar…EPSS 2.4%7.5CVE-2004-0053Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use fields that…EPSS 2.4%7.5CVE-2004-0161Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use RFC2231 enc…EPSS 2.4%7.5CVE-2004-0162Clearswift mailsweeper vulnerabilityMultiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME encapsulation that uses RFC82…EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2003-0121), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.