Clearswift MAILsweeper for SMTP 4.3.6 SP1 does not execute custom "on strip unsuccessful"…
Priority LOW 26Published · 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
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Clearswift MAILsweeper for SMTP 4.3.6 SP1 does not execute custom "on strip unsuccessful" hooks, which allows remote attackers to bypass e-mail attachment filtering policies via an attachment that MAILsweeper can detect but not remove.
Why it matters now
EPSS 0.01414 72nd 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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:all_windows:*:*:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:a:clearswift_limited:mailsweeper:4.3.6_sp1:*:smtp:*:*:*:*:* | 4.3.6_sp1 | Vulnerable | Clearswift Limited |
- cpe:2.3:o:microsoft:all_windows:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:a:clearswift_limited:mailsweeper:4.3.6_sp1:*:smtp:*:*:*:*:* Versions 4.3.6_sp1 Vulnerable ·Clearswift Limited
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-1330
- 2026-10-03 Alias added: GHSA-fh94-5622-c6w9
More Clearswift Limited Mailsweeper vulnerabilities
- TI-2001-01529 The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers… CVSS 2.0HIGH 7.5
Sources
- CVE-2003-1330 · CVE Program
- CVE-2003-1330 · NVD
- FIRST EPSS
- GHSA-fh94-5622-c6w9 · 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