CVE-2026-17203

CVE-2026-17203

IBM Administration Runtime Expert for i 1R1M0 could allow a remote authenticated attacker to obtain sensitive information due to improper authentication enforcement.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (34.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.9% 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-2026-17203: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17203?
CVE-2026-17203 is a high-severity vulnerability, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-08-28.
How severe is CVE-2026-17203?
High severity. CVSS v3 base score is 7.5 out of 10.