Vulnerability Report

CVE-2004-2703

Title: Clearswift MIMEsweeper encrypted data bypass

Other

Proof Of Concept

No public PoC currently indexed for CVE-2004-2703.

CWE Category CWE-310

Published Date Dec 31, 2004

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 4.3 CVSS v2.0

Exploit Probability (EPSS)

1.12%

Vulnerability Summary

CVE-2004-2703: Clearswift MIMEsweeper 5.0.5, when it has been upgraded from MAILsweeper for SMTP version 4.3 or MAILsweeper Business Suite I or II, allows remote attackers to bypass scanning by including encrypted data in a mail message, which causes the message to be marked as "Clean" instead of "Encrypted".

Impacted Vendors

clearswift 4

Reference Links

http://download.mimesweeper.com/www/TechnicalDocumentation/MSWSMTP505UpdateReadMe.htm http://secunia.com/advisories/13160 http://www.osvdb.org/11602 http://www.securityfocus.com/bid/11669 https://exchange.xforce.ibmcloud.com/vulnerabilities/18035 http://download.mimesweeper.com/www/TechnicalDocumentation/MSWSMTP505UpdateReadMe.htm http://secunia.com/advisories/13160 http://www.osvdb.org/11602 http://www.securityfocus.com/bid/11669 https://exchange.xforce.ibmcloud.com/vulnerabilities/18035

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.3

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2004-2703 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

December 31, 2004 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.