CRITICAL

CVE-2026-6730

CVSS v3

9.8

CRITICAL

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

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

Published: 2026-09-23
Last Modified: 2026-09-25

Frequently asked questions

What is CVE-2026-6730?

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.

Is CVE-2026-6730 actively exploited?

Active exploitation of CVE-2026-6730 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-6730?

CVE-2026-6730 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-6730 affecting your environment?

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