What is CVE-2020-4452?

CVE-2020-4452 is a high-severity vulnerability in IBM API Connect, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2020-06-29.

How severe is CVE-2020-4452?

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

Vulnerability in IBM API Connect

CVE-2020-4452

IBM API Connect V2018.4.1.0 through 2018.4.1.11 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 181324.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2020-06-29 · 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:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

IBM API Connect — versions 2018.4.1.0, 2018.4.1.11
IBM API Connect

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

www.ibm.com/support/pages/node/6240322 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/181324 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4452?: CVE-2020-4452 is a high-severity vulnerability in IBM API Connect, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2020-06-29.
How severe is CVE-2020-4452?: High severity. CVSS v3 base score is 7.5 out of 10.