CVE-2021-20411
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another...
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.
- Record
CVE-2021-20411- CVSS 3.0
- 7.5 High
CVSS:3.0/S:C/AV:A/PR:N/C:H/UI:R/I:H/A:N/AC:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-7829
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.
- Record
EUVD-2021-7829- CVSS 3.0
- 7.5 High
CVSS:3.0/S:C/AV:A/PR:N/C:H/UI:R/I:H/A:N/AC:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-php9-88rp-7qwr No score
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another...
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.
- Record
GHSA-php9-88rp-7qwr- Weakness
- CWE-669
- Updated
- 2026-11-02
NVD
IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.
- Record
CVE-2021-20411- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.0
- 7.5 High
CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N - CVSS 2.0
- 4.8 Medium
AV:A/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-669
- 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-2021-20411 is a high vulnerability (CVSS 7.5) in Ibm Security Verify Information Queue, published February 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. No source names a fixed version.