What is CVE-2026-6794?

CVE-2026-6794 is a high-severity vulnerability in IBM Concert, classified under Double Free. CVSS score: 7.8/10. Published 2026-09-23.

How severe is CVE-2026-6794?

High severity. CVSS v3 base score is 7.8 out of 10.

Double Free in IBM Concert

CVE-2026-6794

IBM Concert 1.0.0 through 3.0.0 has a double free vulnerability that exists due to incorrect memory management. A local attacker can exploit this flaw to corrupt heap memory and execute arbitrary code in the context of the affected process.

Vulnerability class: Double Free

Published 2026-09-23.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Concert

Weakness classification (CWE)

CWE-415 — Double Free

References

www.ibm.com/support/pages/node/7288830 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-6794?: CVE-2026-6794 is a high-severity vulnerability in IBM Concert, classified under Double Free. CVSS score: 7.8/10. Published 2026-09-23.
How severe is CVE-2026-6794?: High severity. CVSS v3 base score is 7.8 out of 10.