What is CVE-2020-4309?

CVE-2020-4309 is a medium-severity vulnerability in IBM Content Navigator, classified under Information Disclosure. CVSS score: 5.3/10. Published 2020-03-24.

How severe is CVE-2020-4309?

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

Information disclosure in IBM Content Navigator

CVE-2020-4309

IBM Content Navigator 3.0CD could disclose sensitive information to an unauthenticated user which could be used to aid in further attacks against the system. IBM X-Force ID: 177080.

Vulnerability class: Information Disclosure

Published 2020-03-24 · 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: 0.013 (69.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

IBM Content Navigator — versions 3.0CD
IBM Content Navigator — versions 3.0.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.ibm.com/support/pages/node/6116032 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/177080 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4309?: CVE-2020-4309 is a medium-severity vulnerability in IBM Content Navigator, classified under Information Disclosure. CVSS score: 5.3/10. Published 2020-03-24.
How severe is CVE-2020-4309?: Medium severity. CVSS v3 base score is 5.3 out of 10.