CVE-2025-59866: HCL DFMPro and DFX installers privilege escalation via insecure file permissions

CVE-2025-59866 · Severity: low · CVSS 3.3 · Published 2026-07-17

HCL DFMPro, DFXAnalytics, and DFXServer installers contain a security flaw where file permissions are not correctly restricted. This allows a standard user who is already logged into a computer to replace legitimate software files with malicious ones. If an administrator later runs these files, the attacker could gain higher-level system privileges, potentially compromising the security of the workstation.

Technologies: HCL Software DFXAnalytics, HCL Software DFXServer. Vendors: HCL Software.

Quick answers

Is CVE-2025-59866 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-59866 being exploited in the wild.
How severe is CVE-2025-59866?
Low severity, with a CVSS score of 3.3, published 17 July 2026.
Which products and versions are affected?
HCL Software DFMPro for CATIA v4.1; HCL Software DFXAnalytics v3.1; HCL Software DFXServer v3.1.
Is there a fix for CVE-2025-59866?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-59866 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2025-59866?
Check whether you run HCL Software DFMPro for CATIA, HCL Software DFXAnalytics or HCL Software DFXServer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A privilege escalation vulnerability exists in the installers for HCL DFMPro, DFXAnalytics, and DFXServer due to incorrect permission assignment for critical resources (CWE-732). The installers set insecure file permissions on executable files, allowing a local, non-administrative user to overwrite or replace them with a malicious binary. Exploitation requires local access and typically some level of user interaction or a high-privilege process executing the tampered file. This could allow an attacker to execute arbitrary code with the privileges of the user or service running the modified executable.

Affected products

  • HCL Software DFMPro for CATIA v4.1
  • HCL Software DFXAnalytics v3.1
  • HCL Software DFXServer v3.1

Timeline

  • 2026-07-17: disclosed: Initial disclosure by HCL Software
  • 2026-07-17: advisory: NVD record published

References

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