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CVE-2026-17487

IBM i is Information Disclosure

Medium5.3EPSS 0.24%
Published
Updated
Reserved
Assigned by
ibm

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.

Scores

CVSS scores of CVE-2026-17487, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVDNVD · Analyzed3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
0.24% · top 85% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • IBM · i

    • affected 7.6
    • affected 7.5
    • affected 7.4
    • affected 7.3

What to do

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.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .