A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper validation of the id parameter in the /thd_member.asp endpoint. This vulnerability is classified as high severity with a CVSS score of 7.5, which highlights the critical nature of the flaw.
Risk to organizations includes potential denial of service due to the vulnerability's high impact on availability. Attackers may leverage this vulnerability to disrupt services, making it crucial for organizations to address it promptly.
The vulnerability was published on April 8, 2026, and has been marked as modified. Organizations relying on affected D-Link devices should prioritize patching to prevent exploitation.
Given the known exploitability and high severity, organizations should prioritize patching immediately.
Vulnerability Details
This vulnerability allows for a buffer overflow in the D-Link DI-8003 firmware version 16.07.26A1. The improper validation of the id parameter can lead to significant availability issues, thereby impacting the overall functionality of the device.
The official CVSS score for this vulnerability is 7.5, falling within the high severity range. This score indicates that the vulnerability poses a substantial threat to the security posture of affected systems.
The affected product is D-Link DI-8003 firmware, specifically version 16.07.26A1. The vulnerability was disclosed on April 8, 2026, and is classified under CWE-120, indicating buffer copy without checking size.
Technical Analysis
The root cause of this vulnerability stems from a lack of adequate validation for the id parameter in the /thd_member.asp endpoint. This oversight can be exploited over a network with low complexity and does not require any user interaction. The attack vector is entirely network-based, allowing attackers to initiate exploits remotely.
The attack complexity is rated as low, meaning that the conditions for exploitation are easily achievable. The privileges required for exploitation are none, indicating that any unauthenticated user can initiate the attack.
The vulnerability impacts availability significantly, with a high potential for service disruption. However, it does not affect confidentiality or integrity, as those impacts are rated as none.
Risk & Impact Analysis
Organizations utilizing the D-Link DI-8003 firmware are at considerable risk due to this vulnerability. The potential for denial of service attacks poses a direct threat to operational capabilities.
The urgency to address this vulnerability is high, given its CVSS score of 7.5. Organizations should evaluate their exposure and take immediate steps to mitigate risks, including applying patches or updates as soon as possible.
The blast radius for this vulnerability could be significant, especially in environments where the D-Link DI-8003 is widely deployed. It is imperative for organizations to assess their environment and prioritize remediation efforts accordingly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The specific version affected by this vulnerability is D-Link DI-8003 firmware version 16.07.26A1. All versions prior to vendor patch are considered vulnerable.
Mitigation & Remediation
Organizations should immediately apply patches or updates provided by D-Link to remediate this vulnerability. It is essential to check the D-Link security bulletin for detailed information on the update process. If patches are unavailable, consider implementing workarounds, such as restricting access to the vulnerable endpoint and enhancing network controls.
Detection Guidance
Monitor logs for unusual access patterns to the /thd_member.asp endpoint. Look for behavioral anomalies that could indicate exploitation attempts. Additionally, maintain network signatures that can detect unauthorized access attempts targeting the D-Link DI-8003 firmware.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the need for robust validation processes in firmware development. This incident reflects a trend of increasing vulnerabilities in consumer-grade networking equipment.
Security teams are encouraged to reassess their vulnerability management strategies, ensuring that they account for all networked devices, particularly those from vendors like D-Link. The lessons learned from this case emphasize the importance of rigorous testing and validation.
For more insights on vulnerability management, organizations can explore our guide on vulnerability management programs, and consider our penetration testing methodology to validate your 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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