What is CVE-2020-4191?

CVE-2020-4191 is a medium-severity vulnerability in IBM Security Guardium, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.4/10. Published 2020-06-04.

How severe is CVE-2020-4191?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in IBM Security Guardium

CVE-2020-4191

IBM Security Guardium 11.1 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 174852.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2020-06-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (9.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

IBM Security Guardium — versions 11.1
IBM Security Guardium — versions 11.1
Linux Kernel

Weakness classification (CWE)

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

References

www.ibm.com/support/pages/node/6220130 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/174852 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4191?: CVE-2020-4191 is a medium-severity vulnerability in IBM Security Guardium, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.4/10. Published 2020-06-04.
How severe is CVE-2020-4191?: Medium severity. CVSS v3 base score is 4.4 out of 10.