What is CVE-2019-4437?

CVE-2019-4437 is a medium-severity vulnerability in IBM API Connect, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-08-20.

How severe is CVE-2019-4437?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in IBM API Connect

CVE-2019-4437

IBM API Connect 2018.1 through 2018.4.1.6 may inadvertently leak sensitive details about internal servers and network via API swagger. IBM X-force ID: 162947.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (72.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

IBM API Connect — versions 2018.1, 2018.4.1.6
IBM API Connect

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.ibm.com/support/docview.wss (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/162947 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2019-4437?: CVE-2019-4437 is a medium-severity vulnerability in IBM API Connect, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-08-20.
How severe is CVE-2019-4437?: Medium severity. CVSS v3 base score is 5.3 out of 10.