Overview
A significant vulnerability, CVE-2025-50617, has been identified in Netis WF2880 v2.1.40207. This vulnerability can be potentially exploited by attackers to crash the system and mount a Denial of Service (DoS) attack. Given the prevalent use of Netis WF2880, this issue is of considerable concern and needs immediate attention.
Vulnerability Summary
CVE ID: CVE-2025-50617
Severity: High (7.5 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Netis WF2880 | v2.1.40207
How the Exploit Works
The vulnerability lies in the FUN_0046ed68 function of the cgitest.cgi file in Netis WF2880. A buffer overflow can be triggered by controlling the ‘wps_set’ value in the payload, leading to a system crash. This crash can then be leveraged by attackers to execute a Denial of Service (DoS) attack, potentially leading to data leakage or full system compromise.
Conceptual Example Code
The following is a conceptual HTTP request that could be used to exploit this vulnerability:
POST /cgitest.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "wps_set": "OVERFLOW VALUE" }
In the above code, ‘OVERFLOW VALUE’ would be replaced with a carefully crafted string that causes the buffer overflow, leading to system crash and potential further compromise.

