Overview
In the evolving landscape of cybersecurity threats, a new vulnerability has surfaced that could potentially compromise your data and system integrity. This vulnerability, identified as CVE-2025-10547, is present in the HTTP CGI request arguments processing component of Vigor Routers running DrayOS. The vulnerability can allow an attacker to execute remote code on the appliance through memory corruption. Vigor Routers are widely used for their reliable performance and enhanced security features, which makes this vulnerability particularly threatening, affecting a large number of users worldwide. The severity of this vulnerability emphasizes the crucial need for effective cybersecurity measures.
Vulnerability Summary
CVE ID: CVE-2025-10547
Severity: High (CVSS score 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage
Affected Products
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Product | Affected Versions
Vigor Router | DrayOS versions
How the Exploit Works
The exploit leverages an uninitialized variable in the HTTP CGI request arguments processing component of the Vigor Router. An attacker can craft a malicious HTTP request that can manipulate this variable, leading to memory corruption. Through this memory corruption, an attacker can execute arbitrary code remotely on the router. Such a successful exploit can provide the attacker with unauthorized access to the device, enabling them to compromise the system or cause data leakage.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request that could be used to exploit the vulnerability.
POST /cgi-bin/process.cgi HTTP/1.1
Host: target-router.com
Content-Type: application/x-www-form-urlencoded
arg1=value1&arg2=value2&malicious_arg=uninitialized_variableIn this example, the `malicious_arg` is the uninitialized variable that the attacker can manipulate to cause memory corruption and execute remote code.
Mitigation
Users are strongly recommended to apply the vendor patch as soon as it is available to rectify this vulnerability. In the meanwhile, users can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. These measures can help detect and block malicious traffic that attempts to exploit this vulnerability. However, they are not a permanent solution and should be used in conjunction with other security practices.
