Vulnerability · Published Sep 18, 2026 · Assigned by ibm

CVE-2025-36421Multiple vulnerabilities in IBM Controller

Medium 5.9

In plain English

A medium-severity security flaw in Controller from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.2%top 89.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
IBM	Controller	11.0.0 – through 11.0.1 FP711.1.0 – through 11.1.3 FP1

Weakness: CWE-319 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://www.ibm.com/support/pages/node/7287970 vendor-advisory, patch