CVE-2026-18607

Wavlink · WN572, WN570H, WN573, WN529, WN530, WN531

Multiple Wavlink networking devices are vulnerable to stack-based buffer overflows and memory corruption, potentially allowing remote code execution.

Executive summary

A critical memory corruption vulnerability in various Wavlink network devices could allow an authenticated attacker to compromise system integrity.

Vulnerability

The affected devices are prone to stack-based buffer overflows (CWE-121) and general memory corruption (CWE-119). These flaws require the attacker to have low-level privileges to successfully trigger the vulnerable memory condition.

Business impact

Exploitation of these vulnerabilities may result in a complete system compromise, enabling an attacker to execute arbitrary code with elevated privileges. Given the CVSS score of 8.8, this flaw poses a severe risk to network security, as compromised devices can be used as pivot points for further lateral movement within the network.

Remediation

Immediate Action: Apply the latest firmware updates provided by Wavlink for the affected device models.

Proactive Monitoring: Review device access logs for signs of unauthorized configuration changes or anomalous traffic patterns indicative of memory corruption attempts.

Compensating Controls: Restrict management interface access to trusted IP addresses only and disable unnecessary services to minimize the attack surface.

Exploitation status

Public Exploit Available: unknown

Analyst recommendation

The presence of a proof-of-concept necessitates immediate action. Administrators must verify the firmware version of all deployed Wavlink hardware and apply updates to prevent the potential for remote code execution.