Read the docs
TI-2020-03676 Aliases CVE-2020-4267GHSA-pvcg-m8c9-58wj

Memory leak in IBM MQ Appliance

Priority LOW 31CWE-401Published · 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-401.

Summary

IBM MQ and MQ Appliance 8.0, 9.1 LTS, and 9.1 CD could allow an authenticated user cause a denial of service due to a memory leak. IBM X-Force ID: 175840.

Why it matters now

EPSS 0.01295 70th 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

VendorProductAffected versionsFixed inStatusSource
IBMMQ Appliance8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.0; 8.0.0.8; 8.0.0.10; 8.0.0.11; 9.1.0.1; 9.1.1; 8.0.0.1; 8.0.0.7; 8.0.0.9; 8.0.0.12; 9.1.0.2; 9.1.2; 9.1.0.3; 9.1.3; 9.1; 8.0.0.13; 9.1.0.4; 9.1.4—No fix listedCNA
  • MQ Appliance VendorIBM Affected 8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.0; 8.0.0.8; 8.0.0.10; 8.0.0.11; 9.1.0.1; 9.1.1; 8.0.0.1; 8.0.0.7; 8.0.0.9; 8.0.0.12; 9.1.0.2; 9.1.2; 9.1.0.3; 9.1.3; 9.1; 8.0.0.13; 9.1.0.4; 9.1.4 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:*8.0.0.0 to before 8.0.0.14VulnerableIBM
cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*9.1.0.0 to before 9.1.0.4VulnerableIBM
cpe:2.3:a:ibm:mq_appliance:*:*:*:*:continuous_delivery:*:*:*9.1.0 to before 9.1.5VulnerableIBM
  • 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 9.1.0.0 to before 9.1.0.4 Vulnerable ·IBM
  • cpe:2.3:a:ibm:mq_appliance:*:*:*:*:continuous_delivery:*:*:* Versions 9.1.0 to before 9.1.5 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-4267
  2. 2026-10-03 Alias added: GHSA-pvcg-m8c9-58wj

References

Advisory 1

  • 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
See all 53 →

Sources

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