TI-2020-03816 Aliases CVE-2020-4465 GHSA-xr77-4rxw-6357

Buffer overflow in IBM MQ Appliance

LOW 33CWE-120Published 2020-07-28 · Updated 2024-09-16

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, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS is vulnerable to a buffer overflow vulnerability due to an error within the channel processing code. A remote attacker could overflow the buffer using an older client and cause a denial of service. IBM X-Force ID: 181562.

Why it matters now

EPSS 0.01907 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	8.0; 9.1.LTS; 9.1.CD	—	No fix listed	CNA

MQ Appliance VendorIBM Affected 8.0; 9.1.LTS; 9.1.CD Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:ibm:mq_appliance::::::::	8.0 to before 8.0.0.15	Vulnerable	IBM
cpe:2.3:a:ibm:mq_appliance:::::lts:::*	9.1.0.0 to before 9.1.0.6	Vulnerable	IBM
cpe:2.3:a:ibm:mq_appliance:::::continuous_delivery:::*	9.1.0.0 to before 9.2.0.0	Vulnerable	IBM

cpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:* Versions 8.0 to before 8.0.0.15 Vulnerable ·IBM
cpe:2.3:a:ibm:mq_appliance:*:*:*:*:lts:*:*:* Versions 9.1.0.0 to before 9.1.0.6 Vulnerable ·IBM
cpe:2.3:a:ibm:mq_appliance:*:*:*:*:continuous_delivery:*:*:* Versions 9.1.0.0 to before 9.2.0.0 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-4465
2026-10-03 Alias added: GHSA-xr77-4rxw-6357

References

Patch 1

https://www.ibm.com/support/pages/node/6252783

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

See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences