CVE-2025-36421: IBM Controller

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

IBM Controller 11.0.0 through 11.0.1 FP7, and 11.1.0 through 11.1.3 FP1 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques.

Affected products

• IBM Controller: from 11.0.0, up to and including 11.0.1 FP7; from 11.1.0, up to and including 11.1.3 FP1

Published 2026-09-18. Last modified 2026-09-19.