CVE-2021-20391
IBM QRadar User Behavior Analytics 1.0.0 through 4.1.0 allows web pages to be stored locally...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-20391- CVSS 3.0
- 4.0 Medium
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 - Updated
- 2026-11-02
EUVDEUVD-2021-7809
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.
- Record
EUVD-2021-7809- CVSS 3.0
- 4.0 Medium
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xfq2-689p-9p2m No score
IBM QRadar User Behavior Analytics 1.0.0 through 4.1.0 allows web pages to be stored locally...
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.
- Record
GHSA-xfq2-689p-9p2m- Weakness
- CWE-922
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-20391- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 3.0
- 4.0 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-922
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-20391 is a medium vulnerability (CVSS 4.0) in Ibm Qradar User Behavior Analytics, published May 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.