CVE-2021-20556

IBM Cognos Controller information disclosure

Description

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.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory ibm.com Vendor Advisory ibmcloud.com
Affected: IBM Cognos Controller
Published at:
Updated at:

References

Link Tags
https://www.ibm.com/support/pages/node/7149876 vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/199181 vdb entry vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20556?
CVE-2021-20556 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20556?
To fix CVE-2021-20556, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20556 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20556 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20556?
CVE-2021-20556 affects IBM Cognos Controller.
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