What’s Vulnerable › Vulnerabilities

CVE-2021-20391

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-14 · updated 2026-06-17
• Weakness: CWE-922

Description

IBM QRadar User Behavior Analytics 1.0.0 through 4.1.0 allows web pages to be stored locally which can be read by another user on the system. IBM X-Force ID: 195999.

Affected products

• IBM QRadar User Behavior Analytics: from 1.0.0 before 4.1.1 — fixed in 4.1.1

How to fix

Upgrade to a fixed version: IBM QRadar User Behavior Analytics 4.1.1. Check the vendor advisory for mitigations.

References

• https://exchange.xforce.ibmcloud.com/vulnerabilities/195999
• https://www.ibm.com/support/pages/node/6453103
• https://exchange.xforce.ibmcloud.com/vulnerabilities/195999
• https://www.ibm.com/support/pages/node/6453103

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