MAILsweeper for SMTP 4.3 allows remote attackers to bypass virus protection via a mail…
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
MAILsweeper for SMTP 4.3 allows remote attackers to bypass virus protection via a mail message with a malformed zip attachment, as exploited by certain MIMAIL virus variants.
Why it matters now
EPSS 0.01669 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clearswift:mailsweeper:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.2:*:*:*:*:*:*:* | 4.2 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3:*:*:*:*:*:*:* | 4.3 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.3:*:*:*:*:*:*:* | 4.3.3 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.4:*:*:*:*:*:*:* | 4.3.4 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.5:*:*:*:*:*:*:* | 4.3.5 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.6:*:*:*:*:*:*:* | 4.3.6 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.6_sp1:*:*:*:*:*:*:* | 4.3.6_sp1 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.7:*:*:*:*:*:*:* | 4.3.7 | Vulnerable | Clearswift |
- cpe:2.3:a:clearswift:mailsweeper:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.2:*:*:*:*:*:*:* Versions 4.2 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.3:*:*:*:*:*:*:* Versions 4.3.3 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.4:*:*:*:*:*:*:* Versions 4.3.4 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.5:*:*:*:*:*:*:* Versions 4.3.5 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.6:*:*:*:*:*:*:* Versions 4.3.6 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.6_sp1:*:*:*:*:*:*:* Versions 4.3.6_sp1 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.7:*:*:*:*:*:*:* Versions 4.3.7 Vulnerable ·Clearswift
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clearswift:mailsweeper:4.3.8:*:*:*:*:*:*:* | 4.3.8 | Vulnerable | Clearswift |
| cpe:2.3:a:clearswift:mailsweeper:4.3.10:*:*:*:*:*:*:* | 4.3.10 | Vulnerable | Clearswift |
- cpe:2.3:a:clearswift:mailsweeper:4.3.8:*:*:*:*:*:*:* Versions 4.3.8 Vulnerable ·Clearswift
- cpe:2.3:a:clearswift:mailsweeper:4.3.10:*:*:*:*:*:*:* Versions 4.3.10 Vulnerable ·Clearswift
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-1154
- 2026-10-03 Alias added: GHSA-4pwr-f9qj-c4hf
References
More Clearswift Mailsweeper vulnerabilities
- TI-2004-00203 Multiple stack-based buffer overflows in the get_header function in header.c for LHA… CVSS 2.0HIGH 10.0
- TI-2003-00922 Multiple content security gateway and antivirus products allow remote attackers to bypass… CVSS 2.0HIGH 7.5
- TI-2003-00921 Multiple content security gateway and antivirus products allow remote attackers to bypass… CVSS 2.0HIGH 7.5
- TI-2003-00116 Clearswift MAILsweeper 4.x allows remote attackers to bypass attachment detection via an… CVSS 2.0HIGH 7.5
- TI-2004-00138 Multiple content security gateway and antivirus products allow remote attackers to bypass… CVSS 2.0HIGH 7.5
- TI-2004-00137 Multiple content security gateway and antivirus products allow remote attackers to bypass… CVSS 2.0HIGH 7.5
Sources
- CVE-2003-1154 · CVE Program
- CVE-2003-1154 · NVD
- FIRST EPSS
- GHSA-4pwr-f9qj-c4hf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences