This vulnerability allows command injection in D-Link DI-8200G firmware version 17.12.20A1, affecting the file /upgrade_filter.asp. The vulnerability can be exploited remotely, posing a risk to organizations that utilize this firmware. With a CVSS score of 2.1, the severity is classified as low. However, the remote nature of the exploit necessitates immediate attention.
Risk to organizations includes potential unauthorized command execution, which may lead to further system compromises. The exploit has been made public, increasing the urgency for defenders to assess and remediate this vulnerability. Organizations should prioritize patching this firmware to mitigate risks.
Given the nature of the vulnerability, even though the CVSS score remains low, it could still be leveraged by attackers to gain unauthorized access. Organizations should address this vulnerability in their patch cycle.
The flaw has been classified under CWE-74 and CWE-77, indicating issues related to command injection and command execution vulnerabilities. Organizations should act promptly to ensure their systems are secure.
Organizations should prioritize patching immediately.
Vulnerability Details
A command injection vulnerability was discovered in the D-Link DI-8200G firmware version 17.12.20A1. This affects an unknown function of the file /upgrade_filter.asp, where the manipulation of the argument path can lead to unauthorized command execution. The vulnerability was published on January 9, 2026, and has been assigned a CVSS score of 2.1, classified as low. The CWE classifications for this vulnerability include CWE-74 and CWE-77.
Technical Analysis
The root cause of this vulnerability is due to insufficient input validation on the argument path in the /upgrade_filter.asp file. The attack vector is network-based, which means that an attacker does not require physical or local access to exploit this vulnerability. The attack complexity is low, and the privileges required are also low, meaning that an attacker with limited privileges can perform the attack without requiring user interaction.
The impact on confidentiality, integrity, and availability is low. However, the potential for command execution could allow attackers to further compromise the system, leading to greater risks. Organizations need to monitor their systems for any signs of exploit attempts.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is significant. Organizations using D-Link DI-8200G firmware should recognize the potential for unauthorized command execution. The blast radius could extend to any systems utilizing this firmware, potentially leading to significant operational disruptions.
Assessing urgency based on the CVSS score, while classified as low, organizations must consider the exploit's potential and address it in their patch cycle. The public availability of the exploit increases the likelihood of attempts to exploit this vulnerability, necessitating prompt remediation.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable version is D-Link DI-8200G firmware version 17.12.20A1. All versions prior to vendor patch may also be affected. Organizations should consult vendor documentation to confirm their specific impacted versions.
Mitigation & Remediation
Organizations should prioritize patching the D-Link DI-8200G firmware to the latest version provided by the vendor. If a patch is unavailable, consider implementing network segmentation to limit exposure to vulnerable systems. Configuration hardening should also be applied to reduce the attack surface.
For additional guidance, organizations may benefit from reviewing best practices in penetration testing to identify and address similar vulnerabilities.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual requests to the /upgrade_filter.asp file. Behavioral anomalies indicating unauthorized command execution should also be investigated. Additionally, implementing network signatures can help identify exploit attempts.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the need for organizations to maintain robust security practices around network devices. The command injection flaw is a reminder of the potential risks associated with insufficient input validation.
Security teams should analyze their vulnerability management programs in light of this incident and ensure they are equipped to handle similar vulnerabilities in the future. Regular security assessments and adherence to security best practices can help mitigate risks.
For more insights on vulnerability management, organizations can refer to vulnerability management program design and consider implementing a proactive penetration testing methodology to enhance their security posture.
Finally, organizations should remain aware of ongoing trends in vulnerabilities and adapt their defenses accordingly. Continuous monitoring and improvement of security measures will be crucial to staying ahead of potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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