What is CVE-2020-4580?

CVE-2020-4580 is a high-severity vulnerability in IBM Datapower Gateway. CVSS score: 7.5/10. Published 2020-09-21.

How severe is CVE-2020-4580?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in IBM Datapower Gateway

CVE-2020-4580

IBM DataPower Gateway 2018.4.1.0 through 2018.4.1.12 could allow a remote attacker to cause a denial of service by sending a specially crafted a JSON request with invalid characters. IBM X-Force ID: 184439.

Published 2020-09-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.8th percentile), scored 2026-11-04.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

IBM Datapower Gateway — versions 2018.4.1.0, 2018.4.1.12
IBM Datapower Gateway

References

www.ibm.com/support/pages/node/6334705 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/184439 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4580?: CVE-2020-4580 is a high-severity vulnerability in IBM Datapower Gateway. CVSS score: 7.5/10. Published 2020-09-21.
How severe is CVE-2020-4580?: High severity. CVSS v3 base score is 7.5 out of 10.