CVE-2025-59866 in DFMPro
Summary
by MITRE • 07/17/2026
The HCL DFMPro, DFXAnalytics and DFXServer installers are affected by ‘Insecure file permissions Leading to Privilege Escalation’ vulnerability, which enables any logged-in non-administrative user to overwrite or replace the executable file with a malicious binary.
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Analysis
by VulDB Data Team • 07/17/2026
This vulnerability affects HCL DFMPro DFXAnalytics and DFXServer installer products where insecure file permissions have been configured during installation processes. The flaw represents a classic privilege escalation issue that allows low-privilege users to gain elevated system access through manipulation of installed executables. The root cause lies in improper permission settings that permit standard user accounts to modify or replace critical system binaries without administrative oversight.
The technical implementation of this vulnerability stems from inadequate access control mechanisms within the installer configuration process. When these applications are installed, the executable files and associated components are created with permissions that do not properly restrict write access to non-administrative users. This misconfiguration creates a path where any logged-in user can replace legitimate binaries with malicious counterparts, effectively bypassing normal security boundaries that should prevent such modifications.
From an operational perspective this vulnerability presents significant risks to enterprise environments where multiple users may have access to systems running these applications. The impact extends beyond simple privilege escalation as it provides attackers with potential persistence mechanisms and access to sensitive system resources that would normally be restricted. The vulnerability can be exploited through standard user accounts without requiring administrative credentials, making detection more challenging and exploitation more likely in compromised environments.
The attack vector for this vulnerability aligns with several tactics described in the mitre att&ck framework under privilege escalation techniques including abuse of environment variables and service binary replacement. This weakness directly maps to cwe-276 which defines insecure permissions on resources and cwe-732 which covers incorrect permissions on resources. Organizations should implement immediate remediation measures including proper file permission configuration and regular security audits of installed applications.
Mitigation strategies must include immediate review and correction of file permissions for all installed executables, particularly those related to the affected HCL products. System administrators should verify that executable files have restrictive permissions that prevent modification by non-privileged users while maintaining necessary functionality. Additional protective measures may include implementing application control policies, regular permission audits, and ensuring that only authorized personnel have access to modify system binaries.
Organizations should also consider deploying endpoint protection solutions that can monitor for unauthorized file modifications and alert on suspicious activities related to executable replacement attempts. The vulnerability demonstrates the critical importance of proper access control implementation during software installation processes and highlights the need for comprehensive security configuration management practices across all enterprise systems. Regular vulnerability assessments should include checks for insecure file permissions as part of broader security posture evaluations.
This type of vulnerability commonly occurs in enterprise software installations where security considerations are not prioritized during deployment phases, leading to persistent weaknesses that can be exploited by attackers with minimal technical expertise. The remediation process requires both immediate corrective actions and long-term policy implementation to prevent similar issues from occurring in other installed applications or future deployments.