CVE-2025-12767: IBM Concert

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM Concert 1.0.0 through 3.0.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.

Affected products

• IBM Concert: from 1.0.0, up to and including 3.0.0

Published 2026-09-22. Last modified 2026-09-23.