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CVE-2025-50652: High Vulnerability in D-Link DI-8003 Firmware

CVE-2025-50652 is a high-severity vulnerability in the D-Link DI-8003 firmware, affecting version 16.07.26A1. Organizations should prioritize patching to mitigate potential availability impacts.

HIGHCVSS 7.5 · Published April 8, 2026

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CVE-2025-50652 is a high-severity vulnerability identified in the D-Link DI-8003 firmware version 16.07.26A1. This vulnerability allows for improper handling of the id parameter in the /saveparm_usb.asp endpoint, which could lead to significant availability issues. The CVSS score of 7.5 indicates that this vulnerability is considered high risk, necessitating immediate attention from affected organizations.

Risk to organizations includes potential service disruptions due to the vulnerability's impact on availability. With an attack vector that is network-accessible and low complexity, this vulnerability poses a significant threat, especially to those who may not have implemented adequate security measures.

As of now, there are no known exploits for CVE-2025-50652; however, organizations should remain vigilant. Due to its high severity and potential impact, organizations should prioritize patching immediately.

In addressing this vulnerability, organizations must evaluate their current firmware versions and apply the necessary updates to mitigate the risk associated with CVE-2025-50652.

Vulnerability Details

The vulnerability in question affects the D-Link DI-8003 firmware version 16.07.26A1, specifically related to improper handling of the id parameter in the /saveparm_usb.asp endpoint. The official description notes that this flaw can lead to issues with availability.

CVSS score assigned to this vulnerability is 7.5, categorized under high severity, highlighting the need for prompt remediation efforts.

The vulnerability falls under CWE-120, indicating a potential buffer error. The vulnerability was published on April 8, 2026, and has undergone modifications since its discovery.

Technical Analysis

The root cause of this vulnerability lies in the improper handling of parameters within the firmware's web management interface. This is a typical case of insufficient input validation leading to exploitation potential.

The attack vector is network-based, requiring no user interaction and low privileges. Attack complexity is also low, making it easier for potential attackers to exploit the vulnerability.

The impact on availability is significant, as the vulnerability can lead to denial-of-service conditions, thereby affecting the overall functionality of the device.

Risk & Impact Analysis

The real-world deployment risk associated with this vulnerability is substantial. The availability impact can lead to service disruptions, which organizations must consider in their risk assessments.

Given the high severity score and the potential for exploitation, organizations should act swiftly to mitigate the risks. The urgency of addressing this vulnerability is underscored by the possibility of exposure to network attacks.

Organizations should prioritize remediation efforts based on the criticality of the systems affected by this vulnerability, ensuring that all necessary patches are applied in a timely manner.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The only affected version is D-Link DI-8003 firmware version 16.07.26A1. Organizations using this version should take immediate action to upgrade to the latest firmware to mitigate the risk.

Mitigation & Remediation

Organizations should update their D-Link DI-8003 firmware to the latest version to address this vulnerability. If a patch is not available, implementing network controls to limit access to the vulnerable endpoint may provide some protection. Additionally, organizations should review their configuration hardening practices to ensure that all potential vulnerabilities are mitigated.

For further guidance on effective remediation strategies, organizations can refer to resources on penetration testing and ongoing security assessments.

Detection Guidance

Organizations should monitor their systems for unusual log entries related to the /saveparm_usb.asp endpoint. Additionally, they should be aware of any behavioral anomalies that may indicate attempts to exploit this vulnerability.

Network signatures that could indicate scanning or exploitation attempts should be created and actively monitored.

AppSecure Threat Intelligence Insight

The existence of CVE-2025-50652 highlights a concerning trend in IoT device vulnerabilities, particularly regarding firmware management. Security teams must recognize the importance of proactive vulnerability management and stay ahead of emerging threats.

To further enhance security posture, organizations should conduct regular vulnerability management assessments, alongside integrating penetration testing methodologies into their security strategies.

Additionally, organizations should consider utilizing cloud penetration testing to assess the security of their cloud-based components.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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