CVE-2026-17488

IBM i is Affected By An Improper Authentication Vulnerability in SST / DST

Published Oct 16, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.

Remediation

Vendor Solution

IBM i Release5770-999  PTF Number(s)PTF Download Link(s)7.6MJ11751 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11751 7.5MJ11749 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11749 7.4MJ11750 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11750 7.3MJ11748 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11748 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

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.
Title IBM i is Affected By An Improper Authentication Vulnerability in SST / DST
First Time appeared Ibm
Ibm i
Weaknesses CWE-287
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': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Oct 19, 2026, 2:53 PM
Reserved
Jul 25, 2026, 11:49 PM
Status
Analyzed
Published
Oct 16, 2026, 7:17 PM
Modified
Oct 23, 2026, 3:46 PM