CVE-2020-4877: IBM Cognos Controller

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 could be vulnerable to unauthorized modifications by using public fields in public classes. IBM X-Force ID: 190843.

Affected products

• IBM Cognos Controller: version 10.4.0 only; version 10.4.1 only; version 10.4.2 only

Published 2022-01-21. Last modified 2026-06-17.