CVE-2019-4620
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions...
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.
- Record
CVE-2019-4620- CVSS 3.0
- 8.4 High
CVSS:3.0/S:U/A:H/I:H/AC:L/AV:L/C:H/UI:N/PR:N/RC:C/E:U/RL:O - Updated
- 2026-11-02
EUVDEUVD-2019-14227
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.
- Record
EUVD-2019-14227- CVSS 3.0
- 8.4 High
CVSS:3.0/S:U/A:H/I:H/AC:L/AV:L/C:H/UI:N/PR:N/RC:C/E:U/RL:O - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qwqq-r334-mqgx No score
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions...
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.
- Record
GHSA-qwqq-r334-mqgx- Updated
- 2026-11-02
NVD
IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.
- Record
CVE-2019-4620- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 8.4 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-20
- 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-2019-4620 is a high vulnerability (CVSS 8.4) in Ibm Mq Appliance, published January 28, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. No source names a fixed version.