CVE-2025-55054 is a medium-severity vulnerability classified under CWE-79, which pertains to Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting (XSS). This vulnerability affects the Baicells EG7035E-M11 product, specifically version BaiCE_BM_2.5.26_NA. The issue arises because the device's web interface does not properly sanitize or neutralize user-supplied input before incorporating it into dynamically generated web pages. As a result, an attacker can inject malicious scripts into the web interface, which are then executed in the context of the victim's browser when they access the affected pages. The CVSS 3.1 base score of 6.1 reflects a medium severity level, with the vector indicating that the attack can be performed remotely over the network (AV:N) with low attack complexity (AC:L), no privileges required (PR:N), but requires user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the security scope of the vulnerable component. The impact is limited to low confidentiality and integrity impacts (C:L, I:L) with no impact on availability (A:N). No known exploits are currently in the wild, and no patches have been published yet. The vulnerability could allow attackers to steal session cookies, perform actions on behalf of authenticated users, or conduct phishing attacks by injecting malicious content into the device's management interface. Given that the EG7035E-M11 is a network device used in telecommunications infrastructure, exploitation could lead to unauthorized access or manipulation of network configurations if an administrator interacts with the compromised interface.

For European organizations, particularly those in telecommunications, internet service provision, or enterprises using Baicells EG7035E-M11 devices, this vulnerability poses a risk of unauthorized access and potential compromise of network management interfaces. Successful exploitation could lead to session hijacking, credential theft, or unauthorized configuration changes, undermining network integrity and confidentiality. This could disrupt service delivery or expose sensitive network data. Since the attack requires user interaction, the risk is primarily to administrators or operators accessing the device's web interface. However, given the strategic importance of telecommunications infrastructure in Europe, even limited exploitation could have cascading effects on service availability and trust. Furthermore, regulatory frameworks such as GDPR impose strict requirements on data protection, and any breach resulting from this vulnerability could lead to compliance issues and financial penalties. The absence of known exploits reduces immediate risk but does not eliminate the potential for targeted attacks, especially from advanced persistent threat actors focusing on critical infrastructure.

Organizations should implement several specific measures beyond generic advice: 1) Restrict access to the Baicells EG7035E-M11 management interface to trusted networks only, using network segmentation and firewall rules to prevent exposure to the public internet. 2) Employ strong authentication mechanisms and multi-factor authentication for device management interfaces to reduce the risk of unauthorized access if credentials are compromised. 3) Monitor and log all access to the device's web interface for unusual activity that could indicate exploitation attempts. 4) Educate administrators about the risks of XSS and the importance of cautious interaction with device interfaces, especially avoiding clicking on suspicious links or inputting untrusted data. 5) Coordinate with Baicells for timely updates or patches addressing this vulnerability; if no patch is available, consider temporary mitigations such as disabling the web interface if feasible or using alternative management methods (e.g., CLI over secure channels). 6) Implement Content Security Policy (CSP) headers or web application firewalls (WAF) capable of detecting and blocking XSS payloads targeting the device's interface, if supported in the management environment.