Data Transmission Vulnerability in IBM Controller by IBM
CVE-2025-36421

5.9MEDIUM

Key Information:

Vendor

IBM
Status
Controller
Vendor
CVE Published:
18 September 2026

What is CVE-2025-36421?

IBM Controller versions 11.0.0 through 11.0.1 FP7, and 11.1.0 through 11.1.3 FP1 are susceptible to a vulnerability that allows unencrypted data transmission. This flaw makes it possible for attackers to intercept sensitive information using man-in-the-middle techniques. Organizations using these versions should consider updating their systems or implementing measures to secure data transmission to prevent unauthorized access.

Affected Version(s)

Controller 11.0.0 <= 11.0.1 FP7

Controller 11.1.0 <= 11.1.3 FP1

References

https://www.ibm.com/support/pages/node/7287970
vendor-advisorypatch

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.