CriticalCritical vulnerability

CVE-2026-6730 (CVSS 9.8)

NVD · officialPublished Sep 23, 2026Risk 50/100EPSS 0.4%

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.

Technical details

CVSS

9.8

AV:NetworkAC:LowPR:NoneUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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