CVE-2025-2171 is a high-severity vulnerability affecting Aviatrix Controller versions prior to 7.1.4208, 7.2.5090, and 8.0.0. The vulnerability arises from improper restriction of excessive authentication attempts (CWE-307) specifically in the password reset functionality. The Aviatrix Controller does not enforce rate limiting on password reset attempts, allowing an unauthenticated attacker to brute force the 6-digit password reset PIN. Since the PIN is only 6 digits, the total search space is 1,000,000 combinations, which is feasible to brute force if no rate limiting or lockout mechanisms are in place. The CVSS 4.0 base score is 8.8 (high), reflecting the network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and high impact on confidentiality and availability, with low impact on integrity. Exploiting this vulnerability would allow an attacker to reset passwords and potentially gain unauthorized access to the Aviatrix Controller, which is a critical component in managing cloud networking infrastructure. This could lead to compromise of network configurations, interception or redirection of traffic, and disruption of cloud network services. No known exploits are currently reported in the wild, but the ease of exploitation and critical impact make this a significant threat. The vulnerability affects multiple versions of the Aviatrix Controller prior to the specified patched releases, but exact affected versions are not enumerated in the provided data.

For European organizations using Aviatrix Controller to manage their cloud networking infrastructure, this vulnerability poses a serious risk. Successful exploitation could lead to unauthorized access to network management consoles, enabling attackers to alter routing, intercept sensitive data, or disrupt cloud services. This can impact confidentiality by exposing sensitive network configurations and data flows, integrity by allowing unauthorized changes to network policies, and availability by potentially causing network outages or degraded performance. Organizations in sectors with high reliance on cloud infrastructure—such as finance, telecommunications, healthcare, and critical infrastructure—are particularly at risk. Given the lack of authentication or user interaction required to exploit this vulnerability, attackers can operate remotely and stealthily. The absence of rate limiting on password reset attempts increases the likelihood of brute force success, making this vulnerability attractive for attackers aiming to gain persistent footholds or conduct espionage. The impact extends beyond individual organizations to potentially affect supply chains and cloud service ecosystems in Europe.

1. Immediate patching: Organizations should upgrade Aviatrix Controller to versions 7.1.4208, 7.2.5090, 8.0.0 or later, where this vulnerability is addressed. 2. Implement compensating controls: Until patches are applied, restrict network access to the Aviatrix Controller management interface using IP whitelisting, VPNs, or firewall rules to limit exposure to trusted administrators only. 3. Monitor and alert: Deploy monitoring to detect abnormal password reset attempts or repeated failed authentication attempts targeting the password reset PIN. 4. Enforce multi-factor authentication (MFA): Where possible, enable MFA on the Aviatrix Controller to add an additional layer of security beyond the PIN. 5. Review and harden password reset policies: Work with Aviatrix support or administrators to implement custom rate limiting or lockout mechanisms if supported. 6. Conduct regular audits: Verify that no unauthorized password resets or configuration changes have occurred. 7. Network segmentation: Isolate the Aviatrix Controller management network segment from general user networks to reduce attack surface. These steps go beyond generic advice by focusing on immediate patching combined with network access restrictions and active monitoring tailored to the specific vulnerability vector.