CVE-2026-14867 in PcVue
Summary
by MITRE • 07/07/2026
Credentials of built-in users are insecurely stored in the User directory of PcVue projects, all versions prior to 17.0.0. A local attacker could retrieve users’ credentials.
Active Directory accounts are not affected by this vulnerability.
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Analysis
by VulDB Data Team • 07/07/2026
This vulnerability represents a critical security flaw in PcVue software where built-in user credentials are improperly stored within the User directory of project files across all versions prior to 17.0.0. The insecure storage mechanism allows local attackers with access to the system to retrieve authentication credentials for built-in users, potentially enabling unauthorized access to the application and its associated resources. This weakness directly violates security best practices for credential management and represents a significant risk to system integrity and confidentiality.
The technical implementation flaw stems from inadequate cryptographic protection of user authentication data within the PcVue project structure. Credentials are stored in plain text or with insufficient encryption mechanisms, making them easily accessible to any local user who can navigate to the User directory. This vulnerability falls under CWE-312 (Sensitive Data Exposure) and CWE-522 (Insufficiently Protected Credentials), both of which address improper handling of authentication information. The flaw creates a persistent security risk where even if users change their passwords, the stored credentials in project files remain vulnerable to extraction.
Operationally this vulnerability enables local privilege escalation attacks where attackers can leverage retrieved credentials to gain unauthorized access to PcVue systems and potentially move laterally within network environments. Attackers could use these credentials to perform administrative actions, modify configurations, or access sensitive data processed through the PcVue platform. The impact extends beyond individual system compromise as PcVue is commonly used in industrial control systems and SCADA environments where such breaches can lead to operational technology disruptions and potential safety hazards.
Organizations should immediately implement mandatory updates to version 17.0.0 or later where this vulnerability has been addressed through proper credential encryption mechanisms. System administrators must conduct thorough audits of existing PcVue project files to identify any exposed credentials and reset authentication information for all affected built-in users. Network segmentation and access controls should be enhanced to limit local system access, while security monitoring should include detection of unauthorized file access attempts to the User directories. This vulnerability aligns with ATT&CK technique T1566 (Phishing) when credentials are harvested through local file system access, and T1078 (Valid Accounts) when attackers leverage retrieved credentials for persistent access. The recommended mitigation strategy includes implementing principle of least privilege, regular credential rotation, and comprehensive security awareness training for system administrators to prevent unauthorized local access to critical system files.