In NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.2, an attacker can cause a denial of service by specially crafted packets. The core issue is missing closing of a file in case of an error condition, resulting in the 404 error for each further file request. Users can work-around the issue by disabling the PUT request support.
This vulnerability allows for denial of service, classified as high severity with a CVSS score of 7.1. The risk to organizations includes potential service disruptions, making it crucial for affected users to prioritize remediation.
As of now, there is no known public exploit for this vulnerability, but organizations should remain vigilant, as the attack vector is through the network with low complexity.
Organizations should prioritize patching immediately. The affected version is any version prior to 6.4.2.
Vulnerability Details
The CVE-2025-0726 vulnerability affects the NetX HTTP server functionality of Eclipse ThreadX NetX Duo. The missing closing of a file during error conditions leads to repeated 404 errors for subsequent file requests.
The CVSS score of 7.1 indicates this is a high-severity vulnerability, primarily affecting the availability of the service.
Technical Analysis
The root cause of this vulnerability lies in the error handling within the NetX HTTP server. When an error occurs, the server fails to close the corresponding file, leading to failures in subsequent requests.
The attack vector is network-based, and the complexity is low, meaning an attacker can exploit this without needing advanced skills or any privileges.
There is no user interaction required to trigger this vulnerability, and it has a high impact on availability.
Risk & Impact Analysis
Risk to organizations includes potential service disruptions, which can affect customer trust and operational efficiency. Given the high availability impact, it is critical for organizations to assess their exposure and act swiftly.
Organizations should address this vulnerability in their priority patch cycle, as the implications of a denial of service can be severe, depending on the nature of the service provided.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Eclipse ThreadX NetX Duo prior to version 6.4.2 are affected by this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to Eclipse ThreadX NetX Duo version 6.4.2 or later. If immediate upgrading is not feasible, disabling PUT request support can serve as a temporary workaround.
Organizations may also consider implementing network controls to limit access to affected services until a complete patch can be applied. Regular monitoring of logs for any unusual activity can further help in identifying potential exploitation attempts.
For further assistance on implementing effective security measures, organizations can refer to our application security assessment services.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for indicators of denial of service attacks. Look for repeated 404 errors associated with file requests.
Additionally, monitoring for abnormal traffic patterns that could indicate an attempted exploitation of this vulnerability is advisable.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-0726 highlights the importance of robust error handling within server applications. Organizations should use this incident as a reminder to regularly review and test their error handling processes.
This vulnerability reflects a common pattern in software development where inadequate error handling can lead to severe availability impacts. Security teams should prioritize comprehensive testing of error conditions in their applications.
For more insights on enhancing your security posture, consider exploring our vulnerability management program and our guide on penetration testing methodology to strengthen your defenses.
Finally, organizations should remain vigilant and continuously monitor for new vulnerabilities that may emerge, employing proactive security measures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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