A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to insufficient input validation on the name parameter in the /qos_type_asp.asp endpoint. This vulnerability is classified as high severity with a CVSS score of 7.5, indicating a strong potential for exploitation. The network attack vector and low complexity of this vulnerability increase the risk for organizations that do not address it immediately.
Risk to organizations includes potential denial of service due to the high availability impact. Attackers may leverage this vulnerability to cause service disruptions, which can significantly affect business operations. Given its nature, this vulnerability should be prioritized in patch cycles.
As of now, there are no known exploits or proof of concept (PoC) available in public repositories, which suggests that while the vulnerability is severe, it has not yet been actively exploited in the wild. Organizations should monitor for any developments regarding this vulnerability.
Organizations should prioritize patching immediately. Remediation measures should be implemented as soon as possible to mitigate the risks associated with this vulnerability.
Vulnerability Details
The official description of this vulnerability states that it allows a buffer overflow due to insufficient input validation on the specified parameter. The CVSS score of 7.5 categorizes this vulnerability in the high severity range, indicating a significant risk if exploited.
Affected product includes the D-Link DI-8003 firmware version 16.07.26A1. The vulnerability has been classified under CWE-120, which relates to buffer errors. It was published on April 8, 2026, and has been modified since its initial disclosure.
Technical Analysis
The root cause of this vulnerability is insufficient input validation. The attack vector is network-based, meaning that an attacker can exploit the vulnerability remotely. The attack complexity is low, requiring no specific privileges or user interaction, making it easier for an attacker to exploit.
The impacts of this vulnerability are significant in terms of availability, with a high impact score. Confidentiality and integrity impacts are rated as none. This indicates that while the service may be interrupted, data confidentiality and integrity are not at risk.
Risk & Impact Analysis
The deployment of vulnerable D-Link DI-8003 devices in critical environments can lead to severe service disruptions. The risk is amplified if these devices are part of a larger network infrastructure, as the impact may cascade to other connected systems. Organizations should assess the presence of these devices and evaluate the potential blast radius of an attack leveraging this vulnerability.
Given the high severity and potential for exploitation, organizations are urged to address this vulnerability as a priority. The urgency reflects the CVSS score and potential for significant availability impact.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include D-Link DI-8003 firmware version 16.07.26A1. Organizations using this firmware should upgrade to the latest patched version to mitigate the risk.
Mitigation & Remediation
Organizations should implement the latest firmware updates provided by D-Link to remediate this vulnerability. For those unable to apply updates immediately, consider implementing network controls to limit access to vulnerable endpoints. Regular security assessments and penetration testing can also help identify similar weaknesses in the future. For further assistance, organizations can leverage penetration testing services to validate their security posture.
Detection Guidance
Organizations should monitor logs for indicators of buffer overflow attempts, including unusual parameter sizes or unexpected input on the /qos_type_asp.asp endpoint. Additionally, behavioral anomalies in traffic patterns or unexpected service disruptions may indicate exploitation attempts.
AppSecure Threat Intelligence Insight
The vulnerability in D-Link DI-8003 firmware highlights the importance of input validation in network devices. This incident exemplifies a pattern where insufficient validation leads to significant risks. Security teams should focus on implementing robust validation checks and regularly reviewing their systems for similar vulnerabilities. For further insights, organizations may explore penetration testing methodology or consider a vulnerability management program to strengthen their overall security posture.
Finally, organizations should remain vigilant and stay updated with the latest security advisories to address vulnerabilities as they arise. Continuous engagement in security practices will help mitigate risks effectively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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