A buffer overflow vulnerability exists in D-Link DI-8003 firmware (version 16.07.26A1) due to improper handling of the name and mem parameters in the /time_group.asp endpoint. This vulnerability is classified with a CVSS score of 7.5, indicating a high severity level. The potential risk to organizations includes service disruptions and availability issues, making it crucial for defenders to take immediate action.
The vulnerability is characterized by its low attack complexity, requiring no privileges or user interaction for exploitation. This means that attackers may leverage the vulnerability remotely over the network, posing a significant threat to organizations utilizing the affected firmware.
Given the high severity and potential impact, organizations should prioritize patching immediately. The lack of known exploits or public proof of concept does not diminish the urgency of remediation, as the vulnerability is still capable of causing substantial disruptions.
In addition to patching, organizations should assess their exposure and implement monitoring solutions to detect any unusual activity that might indicate attempts to exploit this vulnerability.
For further information on securing D-Link products, organizations can refer to the vendor's security publications.
Vulnerability Details
The CVE-2025-50653 vulnerability is categorized under CWE-120: Buffer Copy without Size Checking. The CVSS vector 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 has a network attack vector with high availability impact.
Organizations utilizing D-Link DI-8003 firmware version 16.07.26A1 are affected by this vulnerability. The official publication date of the CVE is April 8, 2026.
Technical Analysis
The root cause of this vulnerability is the improper handling of parameters within the /time_group.asp endpoint. Attackers can exploit this by sending specially crafted requests that trigger a buffer overflow, leading to potential denial of service conditions.
The attack vector is classified as network-based, meaning exploitation can occur remotely without the need for physical access to the device. The attack complexity is low, requiring no privileges or user interaction, which increases the risk of exploitation.
The vulnerability primarily impacts availability, as successful exploitation may result in service interruptions. However, confidentiality and integrity are not affected, indicating that sensitive data may not be at risk from this particular vulnerability.
Risk & Impact Analysis
The risk to organizations includes potential downtime and decreased service availability due to the buffer overflow vulnerability. Given that it requires no user interaction or privileges, the likelihood of exploitation is heightened, emphasizing the urgency for organizations to address this vulnerability.
The blast radius for this vulnerability could be significant, as the D-Link DI-8003 is often deployed in various network environments. Organizations that heavily rely on this device should assess their risk exposure and the impact of potential exploitation on their operations.
Given the high CVSS score and the potential impact on availability, organizations should prioritize remediation efforts in their security patching cycles.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version of the D-Link device is 16.07.26A1 of the DI-8003 firmware. Organizations should ensure they update to the latest version provided by the vendor to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability by updating to the latest firmware version available from D-Link. If immediate patching is not possible, consider implementing network segmentation to limit exposure to the affected device.
For organizations seeking to validate their security posture, conducting a thorough security assessment, including penetration testing can help identify vulnerabilities and ensure proper configurations.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual requests to the /time_group.asp endpoint and analyze traffic patterns for anomalies. Additionally, implementing intrusion detection systems can help identify and alert on suspicious activities.
AppSecure Threat Intelligence Insight
The D-Link DI-8003 vulnerability represents a concerning trend of buffer overflow vulnerabilities in network devices. Organizations should remain vigilant about their device configurations and regularly update firmware to mitigate risks.
Security teams should consider integrating practices from the penetration testing methodology to enhance their security strategies. By doing so, they can identify vulnerabilities before they can be exploited.
In conclusion, organizations should prioritize securing their network devices, including D-Link products, to maintain a robust security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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