A buffer overflow vulnerability exists in D-Link DI-8003 firmware version 16.07.26A1. This vulnerability allows improper handling of the name parameter in the /thd_group.asp endpoint, leading to potential exploitation. With a CVSS score of 7.5, this vulnerability is classified as high severity, indicating that it poses a significant risk to organizations that utilize affected devices.
Risk to organizations includes potential denial of service due to the exploitation of this vulnerability. The availability impact is rated as high, which means that successful exploitation could render the device inoperative. Given the nature of the issue, organizations should prioritize patching immediately.
As of now, there are no known exploits in the wild, and the vulnerability has not been listed in the Known Exploited Vulnerabilities (KEV) catalog. However, given the exploitability score and vulnerability characteristics, immediate action is recommended to prevent any potential attacks.
Organizations utilizing D-Link DI-8003 devices should assess their environments for this vulnerability and apply necessary updates to mitigate risks effectively.
Vulnerability Details
The official description of the vulnerability states that it arises due to improper handling of the name parameter in the /thd_group.asp endpoint. The vulnerability is classified under CWE-121: Stack-based Buffer Overflow. The published date for this CVE is April 8, 2026, with the last modification date being April 22, 2026.
The CVSS version 3.1 vector string for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating that it can be exploited over the network with low attack complexity and no privileges required.
Technical Analysis
The root cause of this vulnerability is related to the buffer overflow that occurs when the name parameter is not properly validated before being processed. Attackers may leverage this vulnerability by sending specially crafted requests to the vulnerable endpoint, potentially leading to a denial of service.
The attack vector is network-based, requiring no user interaction and no privileges. The attack complexity is low, making it easier for attackers to exploit this vulnerability. The confidentiality and integrity impacts are rated as none, but the availability impact is rated as high, indicating that successful exploitation can disrupt the service.
Risk & Impact Analysis
Organizations face significant risk from this vulnerability due to its potential to disrupt service availability. If exploited, attackers could render the device inoperative, impacting the operations that rely on it. The urgency assessment is high, given the high CVSS score and the nature of the vulnerability.
The blast radius for this vulnerability can be substantial, especially for organizations that utilize multiple D-Link DI-8003 devices in their infrastructure, potentially leading to widespread service disruptions.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is D-Link DI-8003 firmware version 16.07.26A1. If version information is missing, organizations should assume that all versions prior to the vendor patch are affected.
Mitigation & Remediation
Organizations are advised to apply the latest firmware updates provided by D-Link to mitigate this vulnerability. If a patch is not available, consider implementing network controls to restrict access to the vulnerable endpoint.
In addition, organizations should conduct regular security assessments to identify and remediate vulnerabilities in their network infrastructure. Implementing a penetration testing service can help validate the effectiveness of their security measures.
Detection Guidance
Monitoring for unusual traffic patterns directed at the /thd_group.asp endpoint may help in detecting potential exploitation attempts. Additionally, logging access attempts and analyzing behavioral anomalies can provide insights into any unauthorized access.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the potential for attackers to exploit buffer overflow vulnerabilities in similar network devices. Security teams should enhance their threat models to account for the risks associated with improper input handling.
This vulnerability represents a trend where network devices are increasingly targeted due to inadequate validation mechanisms. Security teams must prioritize proactive measures to prevent exploitation.
For further insights, organizations may consider reviewing best practices in penetration testing methodology and the importance of maintaining an effective vulnerability management program to mitigate risks associated with vulnerabilities.
Additionally, organizations should stay updated with trends in cloud penetration testing and how they can adapt their security strategies accordingly.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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