CVE-2026-17487IBM i is Information Disclosure
- 5.3MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By ibm
- 3 months later
· 3 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibmCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | Medium5.3 | CVSS: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 (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
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
References1
- https://www.ibm.com/support/pages/node/7290096 (opens in a new tab)vendor-advisorypatch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-98167 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-17487)Record last updated .