CVE-2024-52275 in AC6V2
Summary
by MITRE • 12/04/2024
Stack-based Buffer Overflow vulnerability in Shenzhen Tenda Technology Co Tenda AC6V2 (fromWizardHandle modules) allows Overflow Buffers.This issue affects Tenda AC6V2: through 15.03.06.50.
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Analysis
by VulDB Data Team • 05/29/2025
The vulnerability identified as CVE-2024-52275 represents a critical stack-based buffer overflow within the Tenda AC6V2 router firmware, specifically within the fromWizardHandle modules. This flaw manifests in the form of overflow buffers that can be exploited by remote attackers to execute arbitrary code on the affected device. The vulnerability affects all versions of the Tenda AC6V2 router firmware up to and including version 15.03.06.50, indicating a widespread impact across the product line. The issue stems from improper input validation and memory management within the wizard handling functionality, which processes user inputs during the device configuration process. The stack-based nature of this buffer overflow means that malicious input can overwrite adjacent memory locations on the program stack, potentially leading to complete system compromise. This vulnerability is particularly concerning as it affects a wireless router model that is widely deployed in both residential and small office environments, making it a prime target for exploitation by threat actors seeking to establish persistent access points within networks.
The technical implementation of this buffer overflow occurs when the fromWizardHandle modules process incoming data without adequate bounds checking or size validation. According to CWE-121, this vulnerability falls under stack-based buffer overflow conditions where insufficient checks allow attackers to write beyond the allocated buffer boundaries. The attack vector is typically remote, meaning an unauthenticated attacker can exploit this vulnerability from outside the network perimeter, as the wizard handling functionality is often exposed through web interfaces or API endpoints. The operational impact of this vulnerability extends beyond simple code execution, as successful exploitation can lead to complete device compromise, allowing attackers to modify router configurations, redirect traffic, or establish persistent backdoors. This aligns with ATT&CK technique T1059.007 for command and scripting interpreter, where attackers can leverage the compromised device to execute malicious commands. The vulnerability's presence in the wizard handling modules suggests that it could be triggered during normal device setup or configuration processes, making exploitation relatively straightforward for attackers who understand the target firmware's behavior.
The security implications of CVE-2024-52275 are severe given the critical role routers play in network infrastructure security. A compromised Tenda AC6V2 device can serve as a launching point for attacks against internal network resources, potentially enabling man-in-the-middle attacks, DNS hijacking, or traffic interception. The buffer overflow could also be used to escalate privileges within the device's operating system, allowing attackers to gain root access to the router's file system. Network administrators should be particularly concerned about the potential for lateral movement within networks, as routers often serve as gateway devices connecting internal and external networks. The vulnerability's impact is further amplified by the fact that many users may not update their router firmware regularly, leaving devices exposed to this known vulnerability for extended periods. This creates a persistent threat landscape where attackers can target vulnerable devices with minimal effort, as the exploitation requires no specialized knowledge of the device's internal architecture beyond understanding the buffer overflow pattern. The affected firmware versions represent a significant portion of the deployed Tenda AC6V2 installations, making this vulnerability a high-priority concern for cybersecurity professionals managing network infrastructure. Organizations should implement immediate mitigation strategies including firmware updates, network segmentation, and monitoring for signs of exploitation attempts, as the vulnerability's remote exploitability and potential for privilege escalation make it particularly dangerous in enterprise environments.