Overview
The vulnerability CVE-2025-44881 is a serious threat that affects the users of the Wavlink WL-WN579A3 v1.0. It’s a command injection vulnerability that resides in the /cgi-bin/qos.cgi component. This vulnerability could potentially allow attackers to execute arbitrary commands via a specially crafted input, leading to system compromise or data leakage. Given the high CVSS severity score of 9.8, this vulnerability needs immediate attention and mitigation.
Vulnerability Summary
CVE ID: CVE-2025-44881
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
Wavlink WL-WN579A3 | v1.0
How the Exploit Works
The exploit takes advantage of the /cgi-bin/qos.cgi component in the Wavlink WL-WN579A3 v1.0, which fails to properly sanitize user inputs. An attacker can craft a malicious input, which is then executed by the system. This allows the attacker to run arbitrary commands on the system, potentially leading to full system compromise or data leakage.
Conceptual Example Code
Here’s a conceptual example of how the vulnerability might be exploited using an HTTP request:
POST /cgi-bin/qos.cgi HTTP/1.1
Host: target_WL-WN579A3_IP
Content-Type: application/x-www-form-urlencoded
command=; [Insert malicious command here]In this example, the “command” parameter in the POST request is used to inject a malicious command. By appending a semicolon to the “command” parameter, the attacker can run any command they wish, as the semicolon is a command separator in many command-line environments.
Mitigation Strategies
To mitigate this vulnerability, the immediate action required is to apply the vendor-provided patch. It is also recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation until the patch can be applied. Regular patching and updating of all systems should be part of a comprehensive cybersecurity strategy to prevent exploitation of known vulnerabilities.