IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to…
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.
Why it matters now
EPSS 0.01436 73rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | MQ | 9.0.0.1; 8.0.0.1; 8.0.0.2; 8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.7; 9.0.0.2; 7.5.0.1; 7.5.0.2; 7.5.0.3; 7.5.0.4; 7.5.0.5; 7.5.0.6; 7.5.0.7; 7.5.0.8; 8.0.0.8; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.1.0.4; 7.1.0.5; 7.1.0.6; 7.1.0.7; 8.0.0.9; 9.0.0.3; 8.0.0.0; 8.0.0.10; 9.0.0.0; 9.0.0.4; 9.0.0.5; 9.1; 9.1.0.1; 9.1.1; 9.1.0.2; 9.1.2; 8.0.0.11; 9.0.0.6; 7.1.0.0; 7.1.0.8; 7.1.0.9; 7.5.0.0; 7.5.0.9; 8.0.0.12; 9.1.0.3; 9.1.3; 9.0.0.7; 8.0.0.13; 9.0.0.8 | — | No fix listed | CNA |
- MQ VendorIBM Affected 9.0.0.1; 8.0.0.1; 8.0.0.2; 8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.7; 9.0.0.2; 7.5.0.1; 7.5.0.2; 7.5.0.3; 7.5.0.4; 7.5.0.5; 7.5.0.6; 7.5.0.7; 7.5.0.8; 8.0.0.8; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.1.0.4; 7.1.0.5; 7.1.0.6; 7.1.0.7; 8.0.0.9; 9.0.0.3; 8.0.0.0; 8.0.0.10; 9.0.0.0; 9.0.0.4; 9.0.0.5; 9.1; 9.1.0.1; 9.1.1; 9.1.0.2; 9.1.2; 8.0.0.11; 9.0.0.6; 7.1.0.0; 7.1.0.8; 7.1.0.9; 7.5.0.0; 7.5.0.9; 8.0.0.12; 9.1.0.3; 9.1.3; 9.0.0.7; 8.0.0.13; 9.0.0.8 Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:* | 8.0.0.0 to before 8.0.0.14 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* | 9.0.0.0 – 9.0.0.9 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* | 9.1.0 to before 9.1.4 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* | 9.1.0.0 to before 9.1.0.4 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:* | 8.0.0.0 to before 8.0.0.14 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_mq:*:*:*:*:*:*:*:* | 7.1.0.0 – 7.5.0.9 | Vulnerable | IBM |
| cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hewlett Packard Enterprise |
| cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:* Versions 8.0.0.0 to before 8.0.0.14 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.0.0.0 – 9.0.0.9 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* Versions 9.1.0 to before 9.1.4 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.1.0.0 to before 9.1.0.4 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:* Versions 8.0.0.0 to before 8.0.0.14 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_mq:*:*:*:*:*:*:*:* Versions 7.1.0.0 – 7.5.0.9 Vulnerable ·IBM
- cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise
- cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-4656
- 2026-10-03 Alias added: GHSA-8vcg-h82j-6975
References
More IBM Mq vulnerabilities
- TI-2020-03985 Deserialization of untrusted data in IBM MQ CVSS 3.1CRITICAL 9.8
- TI-2026-08787 IBM MQ queue manager is vulnerable to unauthenticated remote code execution CVSS 3.1CRITICAL 9.8
- TI-2022-06772 XML external entity injection in IBM MQ CVSS 3.1CRITICAL 9.1
- TI-2026-09821 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
- TI-2026-09820 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
- TI-2026-09317 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
Sources
- CVE-2019-4656 · CVE Program
- CVE-2019-4656 · NVD
- FIRST EPSS
- GHSA-8vcg-h82j-6975 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences