A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 via the sstartip, sendip, dstartip, and dendip parameters. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet. With a CVSS score of 5.7, this vulnerability is classified as medium severity, which emphasizes the importance of timely remediation.
Risk to organizations includes potential downtime and service disruptions, which can affect business operations and customer trust. Given the associated risks and the fact that the vulnerability is actively being analyzed, organizations should prioritize patching immediately.
The vulnerability has been published and analyzed, with no confirmed public exploits available at this time. However, the nature of the vulnerability necessitates vigilance, as attackers may leverage this weakness if left unaddressed.
Organizations utilizing D-Link DSL-3782 v1.01 should address this vulnerability in their priority patch cycle to minimize the risk of exploitation.
Vulnerability Details
The official description of this vulnerability states that a buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01 through the sstartip, sendip, dstartip, and dendip parameters. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.
The CVSS score for this vulnerability is 5.7, indicating medium severity. The attack vector is adjacent network, requiring low attack complexity and low privileges, with no user interaction required. The availability impact is high, while confidentiality and integrity impacts are none.
Affected products include the D-Link DSL-3782 firmware version 1.01. The vulnerability was published on February 18, 2025, and its CWE classification is CWE-121.
Technical Analysis
The root cause of this vulnerability is a buffer overflow, which occurs when data exceeds the buffer's storage capacity, resulting in adjacent memory locations being overwritten. This can lead to a Denial of Service condition, where the device becomes unresponsive.
The attack vector for this vulnerability is adjacent network, meaning an attacker must be on the same local network to exploit it. The attack complexity is low, as the parameters involved can be easily manipulated to trigger the overflow. A low level of privileges is required to execute the attack, and no user interaction is necessary.
The impacts of this vulnerability are significant in terms of availability, as it can render the device inoperable. There are no impacts on confidentiality or integrity.
Risk & Impact Analysis
The real-world deployment risk of this vulnerability is notable, particularly for organizations using D-Link DSL-3782 devices. If exploited, attackers can cause service disruptions, which could lead to financial losses and reputational damage.
Organizations should assess the potential blast radius of this vulnerability, as it can impact all devices on the local network. Given the medium CVSS score and the lack of known public exploits, organizations should schedule remediation.
Due to the potential availability impact, organizations must act swiftly to patch or mitigate this vulnerability to prevent exploitation.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is D-Link DSL-3782 firmware version 1.01. Organizations must ensure that all versions prior to the vendor patch are updated to mitigate this vulnerability.
Mitigation & Remediation
Organizations should apply the latest firmware updates from D-Link to remediate this vulnerability. If a patch is unavailable, consider implementing network segmentation to limit access to affected devices.
For additional security, organizations may want to implement monitoring solutions to detect any unusual traffic patterns associated with this vulnerability. Regular security assessments are also recommended to ensure ongoing protection.
For further guidance on ensuring application security, organizations can refer to the application security assessment services offered by AppSecure.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual network activity targeting the D-Link DSL-3782. Look for anomalous packets that may indicate attempts to exploit the buffer overflow.
Additionally, implement behavioral anomaly detection systems that can alert security teams to potential threats before they escalate.
AppSecure Threat Intelligence Insight
This vulnerability presents a long-term security concern for organizations relying on D-Link DSL-3782 devices. The trends in buffer overflow vulnerabilities indicate that they remain a popular attack vector for adversaries.
Security teams should incorporate lessons learned from this incident into training and awareness programs to prepare for similar vulnerabilities in the future. Adopting a proactive security posture will be crucial in defending against such threats.
For more information on enhancing security measures, organizations can explore the security testing best practices and consider engaging in penetration testing for comprehensive assessments.
Moreover, organizations should stay informed about emerging vulnerabilities by referring to resources like the vulnerability management program to design effective response strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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