What is CVE-2020-4203?

CVE-2020-4203 is a medium-severity vulnerability in IBM Datapower Gateway. CVSS score: 4.9/10. Published 2020-03-19.

How severe is CVE-2020-4203?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in IBM Datapower Gateway

CVE-2020-4203

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.8 could potentially disclose highly sensitive information to a privileged user due to improper access controls. IBM X-Force ID: 174956.

Published 2020-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.1th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

IBM Datapower Gateway — versions 2018.4.1.0, 2018.4.1.8
IBM Datapower Gateway

References

www.ibm.com/support/pages/node/6090934 (Broken Link)
exchange.xforce.ibmcloud.com/vulnerabilities/174956 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4203?: CVE-2020-4203 is a medium-severity vulnerability in IBM Datapower Gateway. CVSS score: 4.9/10. Published 2020-03-19.
How severe is CVE-2020-4203?: Medium severity. CVSS v3 base score is 4.9 out of 10.