CVE-2026-50208 in Connect M6E 5G Portable WiFi Router
Summary
by MITRE • 06/04/2026
High-risk TrustAllCerts routines disable standard TLS certificate validation. Combined with hard-coded DES symmetric encryption keys, a Man-in-the-Middle (MITM) actor could decrypt network traffic.
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Analysis
by VulDB Data Team • 06/05/2026
The vulnerability described represents a critical security flaw that fundamentally undermines the integrity of network communications through the deliberate disabling of standard transport layer security mechanisms. This issue manifests through the implementation of TrustAllCerts routines that bypass the normal certificate validation processes that TLS protocols rely upon for establishing secure connections. When TLS certificate validation is disabled, attackers can easily perform man-in-the-middle attacks by presenting fraudulent certificates that would normally be rejected by properly configured clients. The vulnerability is particularly dangerous because it operates at the core of network security infrastructure, where the absence of certificate verification creates an open door for malicious actors to intercept and manipulate encrypted communications.
The technical implementation of this vulnerability combines two distinct but complementary security weaknesses that amplify each other's impact. The TrustAllCerts routines represent a well-known pattern of insecure coding practices that explicitly disable certificate validation, often implemented for testing or compatibility purposes but never intended for production environments. These routines typically involve modifying standard SSL/TLS socket factories to accept any certificate without proper verification against trusted certificate authorities. When combined with hard-coded DES symmetric encryption keys, the vulnerability creates a particularly dangerous scenario where not only can attackers intercept communications, but they can also decrypt the content using the weak encryption keys that remain hardcoded within the application. The DES algorithm itself is inherently weak by modern security standards, and the fact that keys are hardcoded makes them easily discoverable through reverse engineering or static code analysis.
The operational impact of this vulnerability extends far beyond simple data interception, as it fundamentally breaks the trust model that secure communications depend upon. Network traffic that should remain confidential becomes completely exposed to unauthorized parties who can monitor, modify, or replay communications without detection. The combination of MITM capabilities with decryption access creates a complete compromise of the confidentiality and integrity assurances that organizations expect from their network security implementations. This vulnerability affects any system that relies on the compromised application for secure communications, potentially exposing sensitive data including authentication credentials, personal information, financial records, and proprietary business data. The risk is particularly severe in enterprise environments where such applications might be used for internal communications, customer data handling, or secure API interactions.
The security implications of this vulnerability align with multiple entries in the CWE database, specifically CWE-295 for improper certificate validation and CWE-327 for use of a broken cryptographic algorithm. The implementation pattern also relates to CWE-310 for cryptographic issues and CWE-259 for weak password handling when considering the hardcoded keys. From an attacker perspective, this vulnerability maps directly to several ATT&CK techniques including T1041 for data compression and T1566 for social engineering, as well as T1071 for application layer protocols and T1571 for lateral movement through compromised network connections. Organizations should immediately implement mitigations including replacing hardcoded encryption keys with properly managed key infrastructure, removing or disabling TrustAllCerts routines, and implementing proper certificate validation mechanisms. Additional measures should include network monitoring for unusual traffic patterns, implementation of certificate pinning where appropriate, and comprehensive code reviews to identify similar insecure practices throughout the application portfolio. The vulnerability serves as a stark reminder of the importance of following security best practices and avoiding shortcuts that compromise fundamental security controls.