Vulnerability in Ibm Cognos Controller
CVE-2021-20556
IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 could allow a remote user to enumerate usernames due to differentiating error messages on existing usernames. IBM X-Force ID: 199181.
EPSS: 0.005 (37.6th percentile) — read the EPSS interpretation.
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.
Affected products
- Ibm Cognos Controller — versions 10.4.1, 10.4.2, 11.0.0
- Ibm Cognos_controller — versions 10.4.1, 10.4.2, 11.0.0
Weakness classification (CWE)
References
- psirt@us.ibm.com (vendor-advisory, Vendor Advisory)
- psirt@us.ibm.com (vdb-entry, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20556?
- CVE-2021-20556 is a medium-severity vulnerability in Ibm Cognos Controller, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2024-05-03.
- How severe is CVE-2021-20556?
- Medium severity. CVSS v3 base score is 5.3 out of 10.