CVE-2026-50205 in Connect M6E 5G Portable WiFi Router
Summary
by MITRE • 06/04/2026
System log files output unencrypted SMTP server authentication passwords alongside sensitive employee corporate identification data.
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Analysis
by VulDB Data Team • 06/04/2026
This vulnerability represents a critical security flaw in system log file management where unencrypted authentication credentials are inadvertently stored alongside sensitive corporate data. The issue stems from improper logging practices where system components fail to sanitize or encrypt authentication tokens before writing them to log files, creating a persistent exposure of administrative credentials. The technical implementation flaw occurs when applications or system services write plaintext SMTP authentication credentials directly to log files without proper credential handling mechanisms, often due to insufficient input validation and output sanitization processes. This configuration creates a severe risk for privilege escalation attacks as adversaries who gain access to log files can immediately extract valid authentication credentials for email services and potentially escalate their access to broader corporate systems. The operational impact extends beyond immediate credential compromise to include potential data exfiltration, unauthorized email relay capabilities, and lateral movement within corporate networks. According to CWE-532, this represents a "Information Exposure Through Log Data" vulnerability where sensitive information is written to logs without adequate protection measures. The attack surface expands significantly when considering that these log files often contain additional corporate identification data such as employee names, email addresses, and departmental information, creating a comprehensive profile of organizational personnel. From an ATT&CK framework perspective, this vulnerability maps to T1566 (Phishing) and T1078 (Valid Accounts) where compromised credentials can be used for further attacks, and T1005 (Data from Local System) when attackers access log files directly. The risk is compounded by the fact that log files are typically stored in accessible locations and may be retained for extended periods, providing attackers with prolonged access to compromised credentials. Organizations should implement proper credential sanitization in logging frameworks, enforce encryption of log files containing sensitive data, and establish strict access controls for log file repositories. Additionally, system administrators must configure applications to avoid logging plaintext credentials and implement automated monitoring for log files containing authentication tokens or corporate identification information. The remediation approach should include comprehensive log file auditing, credential rotation procedures, and implementation of centralized logging solutions that can filter and encrypt sensitive information before storage. This vulnerability demonstrates the critical importance of secure coding practices and proper information handling protocols in preventing accidental exposure of authentication credentials and corporate data through system logging mechanisms.