CVE-2026-72506 in VoiceTra
Summary
by MITRE • 08/13/2026
VoiceTra provided by National Institute of Information and Communications Technology (NICT) contains an incorrectly specified destination in a communication channel vulnerability. Users may be directed to a server (or service) controlled by an attacker, potentially resulting in the theft of input data or the display of incorrect results.
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Analysis
by VulDB Data Team • 08/13/2026
The VoiceTra system developed by the National Institute of Information and Communications Technology presents a critical communication channel vulnerability stemming from improperly configured destination specifications within its network infrastructure. This flaw creates a pathway for attackers to manipulate traffic routing mechanisms and redirect users toward malicious servers or services that they control, fundamentally compromising the integrity and confidentiality of user interactions.
This vulnerability manifests as a destination address misconfiguration that allows adversaries to intercept or reroute communication flows intended for legitimate VoiceTra services. The technical implementation appears to lack proper validation mechanisms for destination endpoints, enabling attackers to substitute authorized server addresses with attacker-controlled alternatives through various means including DNS manipulation, routing table modifications, or protocol-level interference. Such misconfigurations align with common weaknesses identified in CWE-209 which addresses improper handling of destination addresses and CWE-611 which covers inadequate protection against XML external entity attacks that can lead to similar redirection scenarios.
The operational impact of this vulnerability extends beyond simple data interception to encompass potential information disclosure, service disruption, and integrity compromise within the VoiceTra ecosystem. When users are redirected to attacker-controlled servers, sensitive input data may be captured and exfiltrated without detection, while malicious services could present false results or manipulate voice processing outcomes. The vulnerability creates an attack surface that can be exploited across multiple communication protocols and user interaction points within the system architecture, potentially affecting authentication flows, data transmission channels, and real-time voice processing capabilities.
From a threat modeling perspective, this vulnerability maps to several ATT&CK techniques including T1071.004 for application layer protocol manipulation and T1566 for credential harvesting through social engineering or network redirection attacks. The attack vector likely involves initial reconnaissance to identify the communication channel configuration patterns followed by exploitation of the misconfigured destination handling mechanisms. Security controls such as destination validation, network segmentation, and traffic monitoring become critical defensive measures against this type of attack.
Mitigation strategies should prioritize immediate implementation of destination address validation controls within the VoiceTra system architecture, including the deployment of certificate pinning mechanisms, network access control lists, and robust endpoint verification procedures. Organizations should establish automated monitoring systems to detect unauthorized destination changes and implement secure communication protocols that prevent man-in-the-middle attacks through proper TLS configuration and certificate validation processes. Regular security assessments focusing on network communication patterns and destination handling mechanisms will help identify and remediate similar configuration weaknesses before they can be exploited by adversaries.