Skip to content
ZDI-26-051

ZDI-26-051

Zerodayinitiative • February 2, 2026

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Progress Software Kemp LoadMaster. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of user data passed to the delcert command. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the bal user.

Extracted Entities

Attack Types (1)

Platforms (1)