CVE-2025-55625 is an open redirect vulnerability identified in Reolink firmware version 4.54.0.4.20250526. Open redirect vulnerabilities occur when an application or device improperly handles URL redirection, allowing attackers to craft malicious URLs that redirect users to unintended, potentially harmful websites. In this case, the vulnerability allows an attacker to manipulate a URL parameter or endpoint in the Reolink device's web interface or associated services to redirect users to a malicious site. This can be exploited in phishing campaigns or social engineering attacks, where users believe they are interacting with a legitimate Reolink interface but are instead redirected to attacker-controlled domains that may host malware, credential harvesting pages, or other malicious content. The vulnerability does not require authentication, increasing its risk profile, as any user or victim receiving the crafted URL can be targeted. However, the vulnerability does not appear to directly compromise the device’s confidentiality, integrity, or availability, but rather serves as a vector for secondary attacks against users. No known exploits are currently reported in the wild, and no patches or mitigations have been published at the time of disclosure. The lack of a CVSS score indicates that the vulnerability is newly disclosed and has not yet undergone formal severity assessment.

For European organizations using Reolink security camera systems or related devices, this vulnerability poses a risk primarily to end users and administrators who access the device's web interface. Attackers could leverage the open redirect to conduct phishing attacks, potentially leading to credential theft or malware infections if users are redirected to malicious sites. This could undermine trust in physical security infrastructure and lead to broader security incidents if attackers gain access to network credentials or deploy malware within corporate environments. While the direct impact on device functionality is limited, the indirect consequences related to user compromise and social engineering could be significant, especially in sectors with high security requirements such as government, finance, and critical infrastructure. The vulnerability could also be exploited in targeted attacks against organizations with Reolink deployments, increasing the risk of lateral movement or espionage. Given the widespread use of Reolink products in Europe for both commercial and residential security, the potential for exploitation exists but depends on attacker capability and user awareness.

Organizations should implement the following specific mitigations: 1) Monitor official Reolink channels for firmware updates addressing this vulnerability and apply patches promptly once available. 2) Educate users and administrators about the risks of clicking on unsolicited or suspicious URLs related to Reolink devices, emphasizing verification of URLs before interaction. 3) Employ web filtering solutions to block access to known malicious domains and to detect suspicious redirect patterns. 4) Restrict access to the Reolink device management interfaces to trusted networks and users via network segmentation and firewall rules, reducing exposure to external attackers. 5) Implement multi-factor authentication (MFA) for device management portals where possible to reduce the risk of credential compromise through phishing. 6) Conduct regular security awareness training focusing on phishing and social engineering threats. 7) Log and monitor access to Reolink devices for unusual activity that might indicate exploitation attempts. These measures go beyond generic advice by focusing on user education, network controls, and proactive monitoring tailored to the nature of the open redirect threat.