Description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.
Published: 2026-10-12
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

IBM i Release5770-999  PTF Number(s)PTF Download Link(s)7.6MJ11636 MJ11441 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11636 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11441 7.5MJ11635 MJ11439 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11635 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11439 7.4MJ11634 MJ11438 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11634 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11438 7.3MJ11633 MJ11448 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11633 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11448 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Tracking

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Advisories

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History

Mon, 12 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
Description IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.
Title IBM i is Information Disclosure
First Time appeared Ibm
Ibm i
Weaknesses CWE-200
CPEs cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm i
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

Ibm I
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-10-12T23:22:49.725Z

Reserved: 2026-07-25T23:39:42.711Z

Link: CVE-2026-17487

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T00:17:01.007

Modified: 2026-10-13T00:17:01.007

Link: CVE-2026-17487

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor