The POP3 server in IBM iSeries AS/400 returns different error messages when the user…
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
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The POP3 server in IBM iSeries AS/400 returns different error messages when the user exists or not, which allows remote attackers to determine valid user IDs on the server.
Why it matters now
EPSS 0.01692 77th 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-1133
- 2026-10-03 Alias added: GHSA-j238-9q39-h4gr
References
More IBM Iseries As 400 vulnerabilities
- TI-2005-01173 By design, the built-in FTP server for iSeries AS/400 systems does not support a… CVSS 2.0HIGH 7.5
- TI-2005-00965 The FTP server in AS/400 4.3, when running in IFS mode, allows remote attackers to obtain… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2005-1133 · CVE Program
- CVE-2005-1133 · NVD
- FIRST EPSS
- GHSA-j238-9q39-h4gr · GitHub Advisory Database · CC BY 4.0
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