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Fencer Vulns
low 3.7

CVE-2021-20429 json

IBM QRadar User Behavior Analytics 1.0.0 through 4.1.0 could disclose sensitive information due an overly permissive cross-domain policy.

published 2021-05-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7847

cvss
3.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

IBM QRadar User Behavior Analytics 1.0.0 through 4.1.0 could disclose sensitive information due an overly permissive cross-domain policy. IBM X-Force ID: 196334.

Patch / fix

  • ibm qradar_user_behavior_analytics 4.1.1

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 3.7 CVSS:3.0/C:L/A:N/AV:N/S:U/PR:N/AC:H/I:N/UI:N/RL:O/E:U/RC:C
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 3.0 3.7 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • IBM QRadar SIEM

Classification

Weakness

References

Sources

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.