CVE-2025-45584 is a high-severity vulnerability identified in the web service component of the Audi UTR 2.0 (Universal Traffic Recorder 2.0). The core issue is an incorrect access control mechanism that allows unauthenticated attackers to download sensitive car information without any authentication or user interaction. This vulnerability is classified under CWE-284, which pertains to improper access control. The CVSS 3.1 base score of 7.5 reflects a network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction needed (UI:N), unchanged scope (S:U), and a high impact on confidentiality (C:H) while integrity and availability remain unaffected (I:N/A:N). This means an attacker can remotely exploit this flaw over the network without any credentials or user involvement, gaining unauthorized access to potentially sensitive vehicle data. The affected product, Audi UTR 2.0, is a device or system used for traffic recording and likely collects and stores detailed vehicle and possibly driver information. The lack of authentication on the web service interface exposes this data to unauthorized parties, which could include vehicle identifiers, location history, or other telemetry data. No patches or fixes have been linked yet, and no known exploits are reported in the wild as of the publication date (September 12, 2025). However, the vulnerability’s nature and ease of exploitation make it a significant risk, especially as automotive systems increasingly integrate with networked services and cloud infrastructures.

For European organizations, particularly those in automotive manufacturing, fleet management, and transportation services, this vulnerability poses a substantial risk to data confidentiality. Unauthorized access to vehicle data could lead to privacy violations, regulatory non-compliance (e.g., GDPR), and potential misuse of sensitive information such as vehicle location, usage patterns, or driver behavior. This could result in reputational damage, legal penalties, and loss of customer trust. Additionally, attackers could leverage this information for targeted physical attacks, theft, or surveillance. Given the increasing reliance on connected vehicle technologies in Europe, the exposure of such data could also undermine broader cybersecurity and safety initiatives. Organizations operating or managing fleets of Audi vehicles equipped with UTR 2.0 devices may face operational risks if attackers use the information to disrupt services or track assets. The lack of authentication also raises concerns about potential future exploitation vectors if combined with other vulnerabilities, possibly escalating the threat to integrity or availability.

To mitigate this vulnerability, European organizations should immediately assess their exposure by identifying all Audi UTR 2.0 devices deployed within their infrastructure. Network segmentation should be employed to isolate these devices from public or less trusted networks, restricting access to authorized personnel only. Implementing strict firewall rules to block unauthorized inbound traffic to the web service interface is critical. Since no official patches are currently available, organizations should engage with Audi or the device vendor to obtain security updates or guidance. In parallel, monitoring network traffic for unusual access patterns to the UTR 2.0 web service can help detect potential exploitation attempts. Where possible, disabling the web service interface or restricting it to internal networks until a patch is released can reduce risk. Additionally, organizations should review and enhance their incident response plans to include scenarios involving automotive device compromise. Finally, advocating for and participating in coordinated vulnerability disclosure programs with the vendor can accelerate remediation efforts.