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.

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

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.

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

psirt@us.ibm.com (vendor-advisory, patch)

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.