CVE-2026-66842

Name of the Vulnerable Software and Affected Versions BIG-IP (affected versions not specified) BIG-IQ (affected versions not specified)

Description An authenticated user with any role can escalate privileges by creating administrative user accounts. This is achieved through an undisclosed request sent to the Traffic Management User Interface (TMUI) endpoint. This issue affects the control plane and does not expose the data plane.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.