Progress Software Kemp LoadMaster delapikey OS Command Injection Remote Code Execution Vulnerability

February 2nd, 2026
ZDI-26-054 ZDI-CAN-27595

CVE ID

CVE-2025-13447

CVSS Score

6.8 AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Progress Software

Affected Products

Kemp LoadMaster

Vulnerability Details

This vulnerability allows remote 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 delapikey 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.

Additional Details

Progress Software has issued an update to correct this vulnerability. More details can be found at:
https://docs.progress.com/bundle/release-notes_loadmaster-7-2-62-2/page/Security-Updates.html

Disclosure Timeline

  • 2025-10-15 - Vulnerability reported to vendor
  • 2026-02-02 - Coordinated public release of advisory
  • 2026-02-02 - Advisory Updated

Credit

Alex Williams from Converge Technology Solutions

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