Buffer overflow in IBM MQ Appliance
Priority LOW 33CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
IBM MQ Appliance 9.2 CD and 9.2 LTS is vulnerable to a denial of service, caused by a buffer overflow. A remote attacker could send a specially crafted SNMP query to cause the appliance to reload. IBM X-Force ID: 190831.
Why it matters now
EPSS 0.01836 79th 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 Appliance | 9.2.0.0; 9.2.1 | — | No fix listed | CNA |
- MQ Appliance VendorIBM Affected 9.2.0.0; 9.2.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4869
- 2026-10-03 Alias added: GHSA-r6xm-wq7q-jr6c
References
More IBM Mq Appliance vulnerabilities
- TI-2020-03985 Deserialization of untrusted data in IBM MQ CVSS 3.1CRITICAL 9.8
- TI-2017-01080 OS command injection in IBM MQ Appliance CVSS 3.0HIGH 8.8
- TI-2025-00826 IBM MQ code execution CVSS 3.1HIGH 8.8
- TI-2023-11446 IBM MQ denial of service CVSS 3.1HIGH 7.5
- TI-2020-04160 Cross-site request forgery in IBM MQ Appliance CVSS 3.1HIGH 8.8
- TI-2024-16522 IBM MQ code execution CVSS 3.1HIGH 7.5
Sources
- CVE-2020-4869 · CVE Program
- CVE-2020-4869 · NVD
- FIRST EPSS
- GHSA-r6xm-wq7q-jr6c · GitHub Advisory Database · CC BY 4.0
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