CVE-2026-6721
IBM Concert 1.0.0 through 3.0.0 allows an unauthenticated remote attacker can supply specially crafted input that is incorporated into OS commands, resulting in arbitrary command execution on the underlying system. Successful exploitation allows remote code execution with the privileges of the affected application.
- Published Sep 23, 2026
- CVSS 9.8 critical
- 1.4% chance of exploitation in the next 30 days (EPSS)