CVE-2005-1133 — 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

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MEDIUM

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

Published Apr 16, 2005

5.0

MEDIUM

CVSS 2.0

EPSS 1.69%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.69% 0.01692

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01692

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.69% (0.01692)	76.26th	v5 (v2026.06.15)
Jun 15, 2026	1.68% (0.01678)	73.81th	v5 (v2026.06.15)
Mar 17, 2025	0.29% (0.00292)	50.54th	v4 (v2025.03.14)
Dec 12, 2024	0.55% (0.00547)	78.21th	v3 (v2023.03.01)
Mar 23, 2024	0.55% (0.00547)	76.98th	v3 (v2023.03.01)
Feb 8, 2024	0.50% (0.00502)	75.72th	v3 (v2023.03.01)
Aug 6, 2023	0.50% (0.00502)	73.28th	v3 (v2023.03.01)
Mar 7, 2023	0.49% (0.00488)	72.34th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (2)

http://marc.info/?l=bugtraq&m=111358863001693&w=2
mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/bid/13156
vdb-entryx_refsource_BID

Link	Providers	Tags
http://marc.info/?l=bugtraq&m=111358863001693&w=2		mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/bid/13156		vdb-entryx_refsource_BID

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Apr 16, 2005

Updated Aug 7, 2024

Reserved Apr 16, 2005

Link CVE-2005-1133

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2005-1133

Red Hat

Severity n/a

Public date n/a

Links CVE-2005-1133