What is CVE-2026-13367?

CVE-2026-13367 is a high-severity vulnerability in IBM Informix Dynamic Server, classified under Improper Access Control. CVSS score: 7.8/10. Published 2026-08-12.

How severe is CVE-2026-13367?

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

Vulnerability in IBM Informix Dynamic Server

CVE-2026-13367

IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit setuid-root utility.

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

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

EPSS: 0.001 (2.6th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.6% 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 Informix Dynamic Server — versions 14.10, 15.0
IBM Informix Dynamic Server — versions 14.10, 15.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.ibm.com/support/pages/node/7282829 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-13367?: CVE-2026-13367 is a high-severity vulnerability in IBM Informix Dynamic Server, classified under Improper Access Control. CVSS score: 7.8/10. Published 2026-08-12.
How severe is CVE-2026-13367?: High severity. CVSS v3 base score is 7.8 out of 10.