What is CVE-2026-14866?

CVE-2026-14866 is a high-severity vulnerability in IBM I Access Client Solutions, classified under Use of Hard-coded Credentials. CVSS score: 7.7/10. Published 2026-08-12.

How severe is CVE-2026-14866?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in IBM I Access Client Solutions

CVE-2026-14866

IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 is vulnerable to injection of rogue certificate authority due to publicly writeable truststore.

Published 2026-08-12 · last modified 2026-08-18.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

IBM I Access Client Solutions — versions 1.1.2.0
IBM I Access Client Solutions

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.ibm.com/support/pages/node/7282954 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-14866?: CVE-2026-14866 is a high-severity vulnerability in IBM I Access Client Solutions, classified under Use of Hard-coded Credentials. CVSS score: 7.7/10. Published 2026-08-12.
How severe is CVE-2026-14866?: High severity. CVSS v3 base score is 7.7 out of 10.