Information disclosure in IBM I

CVE-2026-17484

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to cause a denial of service due to improper access control.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • IBM I — versions 7.3, 7.4, 7.5

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17484?
CVE-2026-17484 is a medium-severity vulnerability in IBM I, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-10-13.
How severe is CVE-2026-17484?
Medium severity. CVSS v3 base score is 5.3 out of 10.