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CVE-2004-2703

Status: ModifiedMedium (4.3)—

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".

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (4)

Clearswift — Mailsweeper Business Suite IClearswift — Mailsweeper Business Suite IIClearswift — Mailsweeper FOR SmtpClearswift — Mimesweeper FOR WEB

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2004-2703",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2004-12-31T05:00:00.000",
  "references": [
    {
      "url": "http://download.mimesweeper.com/www/TechnicalDocumentation/MSWSMTP505UpdateReadMe.htm",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/13160",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/11602",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/11669",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/18035",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://download.mimesweeper.com/www/TechnicalDocumentation/MSWSMTP505UpdateReadMe.htm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/13160",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/11602",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/11669",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/18035",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\"."
    }
  ],
  "lastModified": "2026-06-16T22:10:11.400",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:clearswift:mailsweeper_business_suite_i:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "22D367E0-7BBF-4069-8BAF-22354D126362"
            },
            {
              "criteria": "cpe:2.3:a:clearswift:mailsweeper_business_suite_ii:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2F701A23-4D0E-40D2-8CE9-3529346065F3"
            },
            {
              "criteria": "cpe:2.3:a:clearswift:mailsweeper_for_smtp:4.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "11667D6A-A1BA-4FF4-BE5F-194A743167FE"
            },
            {
              "criteria": "cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D98B72C-99E5-4980-8305-EF40C469C33F"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}