CVE-2026-6730 PUBLISHED

Multiple Vulnerabilities in IBM Concert Software

Assigner: ibm
Reserved: 20.04.2026 Published: 23.09.2026 Updated: 25.09.2026

IBM Concert 1.0.0 through 3.0.0 is vulnerable to a buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	Concert
Versions	affected from 1.0.0 to 3.0.0 (incl.)

Solutions

IBM strongly recommends addressing the vulnerability now by upgrading to IBM Concert Software 3.0.1.1

Download IBM Concert Software 3.0.0 from Container software library section of IBM Entitled Registry ( ICR https://myibm.ibm.com/products-services/containerlibrary ) and follow installation instructions https://www.ibm.com/docs/en/concert depending on the type of deployment.

References

https://www.ibm.com/support/pages/node/7288830

Problem Types

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE