CVE-2026-24465 in WAB-S733IW2-PD
Summary
by MITRE • 02/03/2026
Stack-based buffer overflow vulnerability exists in ELECOM wireless LAN access point devices. A crafted packet may lead to arbitrary code execution.
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Analysis
by VulDB Data Team • 03/06/2026
The CVE-2026-24465 vulnerability represents a critical stack-based buffer overflow flaw discovered in ELECOM wireless LAN access point devices, posing significant security risks to network infrastructure deployments. This vulnerability stems from inadequate input validation mechanisms within the device's wireless protocol handling components, specifically affecting the processing of incoming network packets. The flaw exists in the firmware implementation where network traffic is parsed and validated before being processed by the device's wireless communication stack. Attackers can exploit this weakness by crafting malicious network packets that exceed the allocated buffer space, causing a stack overflow condition that can be leveraged for privilege escalation and arbitrary code execution.
The technical exploitation of this vulnerability follows a classic stack-based buffer overflow attack pattern where malicious input data overflows the designated stack buffer, potentially overwriting adjacent memory locations including return addresses and control data. This type of vulnerability maps directly to CWE-121 Stack-based Buffer Overflow, which is categorized under the Common Weakness Enumeration framework as a fundamental memory safety issue. The attack vector specifically targets the wireless access point's packet processing logic, where network frames are received and parsed without sufficient bounds checking. When the device receives a specially crafted packet that exceeds the expected buffer size, the overflow corrupts the stack memory, potentially allowing an attacker to redirect execution flow to malicious code injected into the buffer space.
The operational impact of this vulnerability extends far beyond simple denial of service conditions, as it enables full compromise of the affected wireless access point devices. Once exploited, attackers can gain unauthorized administrative access to the device, potentially leading to complete network infiltration and lateral movement within the organization's infrastructure. The vulnerability affects wireless LAN access points that process incoming packets without proper bounds checking, making them susceptible to remote exploitation from any location within the wireless network coverage area. Network administrators face significant risks including data exfiltration, man-in-the-middle attacks, and the potential for these compromised devices to serve as pivot points for attacking internal network segments. The impact is particularly severe in enterprise environments where wireless access points serve as critical network entry points and are often deployed with minimal network segmentation.
Mitigation strategies for CVE-2026-24465 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities. Organizations should prioritize applying firmware updates from ELECOM that contain patches addressing the buffer overflow condition, ensuring that all affected devices are updated to versions that implement proper input validation and bounds checking mechanisms. Network segmentation should be enhanced to limit the blast radius of potential exploitation, with wireless access points isolated in separate VLANs and access controls implemented to restrict unauthorized network access. The implementation of network monitoring solutions that can detect anomalous packet patterns and potential exploitation attempts provides an additional layer of defense. Security controls should include regular vulnerability assessments of network infrastructure components and adherence to secure coding practices that prevent stack-based buffer overflows through proper memory management and input validation. Organizations should also consider implementing intrusion detection systems specifically configured to identify exploitation attempts targeting wireless infrastructure devices. This vulnerability demonstrates the importance of applying the principle of least privilege and maintaining up-to-date security patches across all network infrastructure components to prevent exploitation through well-known attack vectors.