CVE-2021-20391 json
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 syste…
published 2021-05-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7809
- cvss
- 4.0
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- ibm qradar_user_behavior_analytics 4.1.1
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 4.0 | CVSS:3.0/S:U/C:L/A:N/AV:L/UI:N/AC:L/I:N/PR:N/RL:O/E:U/RC:C |
| NVD | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.0 | 4.0 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- IBM QRadar SIEM
Classification
- Weakness
-
- CWE-922 Insecure Storage of Sensitive Information
References
-
ibm.com
/support/pages/node/6453103
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/195999
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2021-20391
- NVD CVE-2021-20391
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.