Executive Summary

This vulnerability involves hidden functionality in the WN-7D36QR and WN-7D36QR/UE wireless LAN routers. Specifically, it allows a remote authenticated attacker to enable SSH access on the device and execute arbitrary operating system commands, potentially compromising the device. [1]

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Impact Analysis

If exploited, this vulnerability can allow a remote authenticated attacker to gain SSH access and execute arbitrary OS commands on the affected router. This could lead to unauthorized control over the device, potentially disrupting network operations or exposing sensitive information. [1]

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Detection Guidance

Detection can involve checking if SSH is unexpectedly enabled on the affected WN-7D36QR or WN-7D36QR/UE devices, especially if remote authenticated attackers could have enabled it. Network scanning tools like nmap can be used to detect open SSH ports (usually port 22) on these devices. For example, running 'nmap -p 22 <device_ip>' can help identify if SSH is enabled. Additionally, reviewing device firmware version to see if it is 1.1.3 or earlier can indicate vulnerability presence. [1]

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Mitigation Strategies

The immediate mitigation step is to update the router firmware to version 2.1.3 or later, which addresses the vulnerabilities including CVE-2025-55075. Until the update is applied, restrict remote authenticated access to the device to prevent exploitation. Disabling remote management features and monitoring for unauthorized SSH access attempts are also recommended. [1]

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