What is CVE-2026-84414?

CVE-2026-84414 is a high-severity vulnerability in IBM I, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-09-29.

How severe is CVE-2026-84414?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in IBM I

CVE-2026-84414

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.

Published 2026-09-29 · last modified 2026-09-30.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM I — versions 7.3, 7.4, 7.5

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

www.ibm.com/support/pages/node/7289443 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-84414?: CVE-2026-84414 is a high-severity vulnerability in IBM I, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-09-29.
How severe is CVE-2026-84414?: High severity. CVSS v3 base score is 7.8 out of 10.