CVE-2025-26062 is a security vulnerability affecting Intelbras RX1500 version 2.2.9 and RX3000 version 1.0.11 routers. The flaw is an access control issue that allows unauthenticated attackers to access the router's settings file. This file likely contains sensitive configuration data such as network settings, passwords, administrative credentials, or other critical operational parameters. Because the vulnerability does not require authentication, any attacker with network access to the device could exploit this flaw to retrieve sensitive information. This exposure could facilitate further attacks, including network intrusion, man-in-the-middle attacks, or persistent compromise of the affected network. The vulnerability has been publicly disclosed but currently lacks a CVSS score and no known exploits have been reported in the wild. The absence of a patch link suggests that a fix may not yet be available, increasing the urgency for affected organizations to implement mitigations. The vulnerability impacts the confidentiality and potentially the integrity of the router’s configuration, posing a significant risk to network security.

For European organizations, this vulnerability could have serious consequences. Routers like the Intelbras RX1500 and RX3000 are often deployed in small to medium-sized enterprises or branch offices, and compromise of these devices can lead to unauthorized access to internal networks. Attackers obtaining router configuration files can extract credentials and network topology information, enabling lateral movement and data exfiltration. This is particularly critical for organizations handling sensitive personal data under GDPR, as a breach could lead to regulatory penalties and reputational damage. Additionally, compromised routers can be used as footholds for launching attacks against other connected systems or as part of botnets. The lack of authentication requirement lowers the barrier for exploitation, increasing the risk of widespread attacks if the vulnerability is actively targeted. Given the potential for exposure of sensitive network infrastructure details, European organizations must prioritize detection and mitigation to protect confidentiality and maintain network integrity.

Since no official patch is currently available, organizations should take immediate steps to mitigate risk. First, restrict network access to the affected routers by implementing strict firewall rules that limit management interface exposure only to trusted IP addresses or internal networks. Disable remote management features if not required. Regularly audit router configurations and monitor network traffic for unusual access patterns or attempts to retrieve configuration files. Employ network segmentation to isolate critical systems from vulnerable devices. Where possible, replace affected devices with updated models or firmware versions once patches are released. Additionally, enforce strong password policies and consider using multi-factor authentication for router management interfaces to reduce the impact of potential credential exposure. Maintain up-to-date asset inventories to quickly identify and remediate vulnerable devices. Finally, stay informed through vendor advisories and security bulletins for patch releases or further guidance.