CVE-2025-33099: IBM Concert

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Concert Software 1.0.0 through 1.1.0 could allow a remote attacker to perform unauthorized actions using man in the middle techniques due to improper certificate validation.

Affected products

• IBM Concert: from 1.0.0, before 2.0.0 (fixed in 2.0.0)

Published 2025-09-01. Last modified 2026-06-17.