Overview
CVE-2025-14094 describes a medium severity vulnerability found in Edimax BR-6478AC V3 firmware version 1.0.15. This vulnerability allows a remote attacker to execute arbitrary operating system commands on the affected device. The vendor was notified but did not respond to the disclosure.
Technical Details
The vulnerability resides within the sub_44CCE4 function of the /boafrm/formSysCmd file. By manipulating the sysCmd argument, an attacker can inject arbitrary OS commands. Because the attack is initiated remotely and requires no authentication (based on published reports), the potential impact is significant.
CVSS Analysis
The vulnerability has a CVSS score of 4.7, indicating a MEDIUM severity. This score reflects the following characteristics:
- Attack Vector: Network (AV:N)
- Attack Complexity: Low (AC:L)
- Privileges Required: None (PR:N)
- User Interaction: None (UI:N)
- Scope: Unchanged (S:U)
- Confidentiality Impact: Partial (C:P)
- Integrity Impact: Partial (I:P)
- Availability Impact: Partial (A:P)
While the impact is only partial across confidentiality, integrity, and availability, the ease of exploitation (low complexity, no privileges required) makes this a significant risk.
Possible Impact
Successful exploitation of CVE-2025-14094 can lead to a variety of malicious activities, including:
- Complete compromise of the router: Attackers can gain full control over the device.
- Network reconnaissance: The router can be used to map out the internal network.
- Data theft: Sensitive data stored on the network could be accessed.
- Malware distribution: The router can be used as a staging ground for malware.
- Denial-of-service attacks: The router can be used to launch attacks against other devices.
- Botnet recruitment: The router can be added to a botnet.
Mitigation or Patch Steps
Unfortunately, given the vendor’s lack of response, a direct patch is unlikely. Users of the Edimax BR-6478AC V3 router are advised to take the following mitigation steps:
- Discontinue Use: The most secure option is to replace the router with a more secure model from a vendor that provides regular security updates.
- Restrict Access: If discontinuing use is not possible, restrict access to the router’s web interface as much as possible. Ensure it is not accessible from the public internet. Use strong passwords for all accounts.
- Monitor Network Traffic: Closely monitor network traffic for any unusual activity originating from the router.
- Consider Custom Firmware (Advanced Users): Advanced users might explore third-party firmware options (e.g., OpenWrt) that offer security updates and potentially patch the vulnerability, *however*, carefully research compatibility and potential risks of flashing custom firmware before attempting this.
