What is CVE-2019-4600?

CVE-2019-4600 is a medium-severity vulnerability in IBM API Connect. CVSS score: 5.3/10. Published 2019-10-29.

How severe is CVE-2019-4600?

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

Vulnerability in IBM API Connect

CVE-2019-4600

IBM API Connect version V5.0.0.0 through 5.0.8.7 could reveal sensitive information to an attacker using a specially crafted HTTP request. IBM X-Force ID: 167883.

Published 2019-10-29 · 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 (72.0th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.0% 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 5.0.0.0, 5.0.8.7
IBM API Connect

References

www.ibm.com/support/pages/node/1079127 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/167883 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2019-4600?: CVE-2019-4600 is a medium-severity vulnerability in IBM API Connect. CVSS score: 5.3/10. Published 2019-10-29.
How severe is CVE-2019-4600?: Medium severity. CVSS v3 base score is 5.3 out of 10.