CVE-2025-62646 is a vulnerability identified in the Restaurant Brands International (RBI) assistant platform, specifically affecting versions up to 2025-09-06. The vulnerability is classified under CWE-669, which involves incorrect resource transfer between security spheres, meaning that data intended to be isolated within a secure context is improperly exposed to less secure or unauthorized contexts. In this case, remote attackers with some level of privileges (PR:L) can access stored audio recordings of conversations between Drive Thru associates and customers. The attack vector is network-based (AV:N), requiring no user interaction (UI:N), and the scope is changed (S:C), indicating that the vulnerability affects resources beyond the initially vulnerable component. The CVSS 3.1 base score is 5.0 (medium), reflecting a low complexity attack (AC:L) but limited impact on integrity and availability (I:N, A:N), with confidentiality impacted at a low level (C:L). The vulnerability allows unauthorized review of sensitive audio data, potentially exposing customer information and internal communications. No patches or exploits are currently reported, but the risk remains due to the sensitive nature of the data and the potential for privacy violations. The assistant platform is used in Drive Thru operations, which are critical customer interaction points, making the confidentiality breach significant. The vulnerability highlights a failure in properly segregating sensitive audio data within the platform’s security boundaries, allowing unauthorized access to recordings that should be protected.

For European organizations operating RBI’s assistant platform, this vulnerability poses a significant confidentiality risk by exposing recorded conversations between employees and customers. Such exposure could lead to breaches of customer privacy, loss of trust, and potential violations of the EU General Data Protection Regulation (GDPR), which mandates strict controls over personal data processing and storage. The leakage of audio data could include personally identifiable information (PII) or sensitive business information, leading to reputational damage and possible regulatory fines. Although the vulnerability does not impact data integrity or system availability, the confidentiality breach alone is critical given the nature of the data. Additionally, unauthorized access to these recordings could be leveraged for social engineering or other targeted attacks against the organization. The medium severity score reflects the moderate ease of exploitation and the limited scope of affected systems, but the impact on privacy and compliance is substantial. Organizations in Europe must consider the legal and operational consequences of such data exposure, especially in countries with stringent data protection enforcement.

1. Immediate mitigation should focus on restricting access controls within the assistant platform to ensure only authorized personnel with a legitimate need can access stored audio recordings. 2. Implement network segmentation and firewall rules to limit remote access to the platform’s storage components. 3. Monitor access logs and audit trails for unusual or unauthorized access attempts to audio data. 4. Engage with Restaurant Brands International to obtain and apply security patches or updates addressing this vulnerability as soon as they become available. 5. Encrypt stored audio recordings at rest and in transit to reduce the risk of data exposure even if access controls are bypassed. 6. Conduct regular security assessments and penetration testing focused on data segregation and access control mechanisms within the platform. 7. Train staff on the importance of protecting customer data and recognizing potential exploitation attempts. 8. Review and update incident response plans to include scenarios involving unauthorized access to sensitive audio data. 9. Coordinate with legal and compliance teams to ensure GDPR and other relevant data protection requirements are met, including timely breach notification procedures if exposure occurs.