How severe is CVE-2018-1796?

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

Vulnerability in IBM Informix Dynamic Server

CVE-2018-1796

IBM Informix Dynamic Server Enterprise Edition 12.1 could allow a local user to load malicious libraries and gain root privileges. IBM X-Force ID: 149426.

Published 2019-08-20 · last modified 2026-06-17.

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: 0.004 (29.4th percentile), scored 2026-10-31.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

IBM Informix Dynamic Server — versions 12.10
IBM Informix Dynamic Server Enterprise Edition — versions 12.1

References

www.ibm.com/support/docview.wss (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/149426 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2018-1796?: CVE-2018-1796 is a high-severity vulnerability in IBM Informix Dynamic Server. CVSS score: 7.8/10. Published 2019-08-20.
How severe is CVE-2018-1796?: High severity. CVSS v3 base score is 7.8 out of 10.