A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of parameters in the /xwgl_bwr.asp endpoint. This vulnerability allows attackers to disrupt service by sending a crafted HTTP GET request using parameters such as name, qq, and time. With a CVSS score of 7.5, this vulnerability is classified as high severity, indicating a significant risk to affected systems.
Risk to organizations includes potential service disruption as the availability impact is rated as high. Since the attack vector is network-based and requires no privileges or user interaction, exploitation is straightforward for attackers, making it imperative for organizations to take immediate action.
As of now, no public exploit has been confirmed, and this vulnerability is not listed in the Known Exploited Vulnerabilities (KEV) database. However, the potential for exploitation remains, and organizations should prioritize patching immediately.
Given the vulnerability's high severity and potential impact, it is crucial for organizations utilizing D-Link DI-8003 firmware to ensure they are running the latest version to mitigate this risk effectively.
Vulnerability Details
The vulnerability is classified as CWE-120, indicating a buffer overflow issue. The affected product is the D-Link DI-8003 firmware version 16.07.26A1, which is vulnerable due to improper handling of input parameters. This vulnerability was published on April 8, 2026, and has been analyzed for its impact.
Technical Analysis
The root cause of this vulnerability is the improper handling of parameters in the /xwgl_bwr.asp endpoint, allowing for buffer overflow conditions. This vulnerability can be exploited over a network without requiring any authentication or user interaction, making it relatively easy to exploit. The attack complexity is low, increasing the risk of successful exploitation.
When exploited, the availability impact is rated as high, meaning that an attacker could disrupt services. However, there is no confidentiality or integrity impact reported. Organizations must be vigilant in monitoring for unusual network activity that may indicate attempts to exploit this vulnerability.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is significant. Organizations using D-Link DI-8003 firmware may face service interruptions, leading to potential financial losses and damage to reputation. The blast radius could affect all systems utilizing this firmware, making it essential to address this vulnerability promptly.
Given the CVSS score of 7.5 and the fact that it is not listed in the KEV database, organizations should still take this vulnerability seriously. The low EPSS score of approximately 0.00147 indicates a lower likelihood of exploitation, but the potential impact is still substantial, necessitating a proactive approach.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version of the D-Link DI-8003 firmware is 16.07.26A1. Organizations should ensure their systems are updated to mitigate the risk posed by this vulnerability. If version information is missing, organizations should consider it as all versions prior to vendor patch.
Mitigation & Remediation
Organizations should immediately apply the latest firmware updates from D-Link to protect against this vulnerability. Additionally, organizations may enhance their defenses by implementing network segmentation to limit exposure, monitoring network traffic for unusual patterns, and considering configuration hardening. For more information on effective security testing, organizations can refer to our penetration testing services.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual HTTP GET requests targeting the /xwgl_bwr.asp endpoint, especially those including unexpected parameters. Behavioral anomalies should be documented, and any deviations from normal operation should be investigated thoroughly.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the need for robust input validation mechanisms in firmware development. This incident represents a trend where networked devices are increasingly targeted due to their accessibility and often inadequate security measures. Security teams should reinforce their defenses against similar vulnerabilities by adopting comprehensive security frameworks and ensuring regular audits of their systems.
For further reading on effective security practices, organizations can check our blogs on penetration testing methodology and vulnerability management program design to enhance your security posture.
Additionally, insights on API security testing can further assist in identifying weaknesses in your applications.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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