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

Source: https://junglewise.ai/threats/cve-2025-59866-hcl-dfmpro-and-dfx-installers-privilege-escalation-via-insecure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-17. Updated: 2026-07-17  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/dfxanalytics), [HCL Software DFXServer](https://junglewise.ai/threats/technologies/dfxserver). Vendors: [HCL Software](https://junglewise.ai/threats/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

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132365](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132365)

## Related threats

- [HCL DFXAnalytics internal file path disclosure in dashboard](https://junglewise.ai/threats/cve-2026-56456-hcl-dfxanalytics-internal-file-path-disclosure-in-dashboard)
- [HCL DFXAnalytics buffer overflow in memory container](https://junglewise.ai/threats/cve-2026-56455-hcl-dfxanalytics-buffer-overflow-in-memory-container)
- [HCL DFXAnalytics use of deprecated TLS 1.0 and 1.1 protocols](https://junglewise.ai/threats/cve-2026-56454-hcl-dfxanalytics-use-of-deprecated-tls-1-0-and-1-1-protocols)
- [HCL DFXAnalytics account takeover via response manipulation](https://junglewise.ai/threats/cve-2026-56453-hcl-dfxanalytics-account-takeover-via-response-manipulation)
- [HCL DFXAnalytics missing HSTS header](https://junglewise.ai/threats/cve-2026-35145-hcl-dfxanalytics-missing-hsts-header)