What is CVE-2020-4388?

CVE-2020-4388 is a high-severity vulnerability in IBM Cognos Analytics, classified under Improper Handling of Exceptional Conditions. CVSS score: 8.2/10. Published 2020-10-12.

How severe is CVE-2020-4388?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in IBM Cognos Analytics

CVE-2020-4388

IBM Cognos Analytics 11.0 and 11.1 could be vulnerable to a denial of service attack by failing to catch exceptions in a servlet also exposing debug information could also be used in future attacks. IBM X-Force ID: 179270.

Published 2020-10-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.2th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.2% 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 Cognos Analytics — versions 11.0, 11.1
IBM Cognos Analytics — versions 11.0.13

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

www.ibm.com/support/pages/node/6346922 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/179270 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4388?: CVE-2020-4388 is a high-severity vulnerability in IBM Cognos Analytics, classified under Improper Handling of Exceptional Conditions. CVSS score: 8.2/10. Published 2020-10-12.
How severe is CVE-2020-4388?: High severity. CVSS v3 base score is 8.2 out of 10.