Auth bypass in IBM I

CVE-2026-18175

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to manipulate database transactions due to improper authorization in the DDM target dispatcher.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L.

EPSS exploit prediction

EPSS: 0.002 (8.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-18175: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • IBM I — versions 7.3, 7.4, 7.5

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18175?
CVE-2026-18175 is a high-severity vulnerability in IBM I, classified under Improper Authorization. CVSS score: 8.1/10. Published 2026-09-04.
How severe is CVE-2026-18175?
High severity. CVSS v3 base score is 8.1 out of 10.