CVE-2026-109108
CriticalCVSS 9.9Exploitation Probability (EPSS)
High risk83th percentile - higher than 83% of all known CVEs
Summary
The Wavlink WL-WN530BE1-A router version 251117 contains a vulnerability in the popen function of /cgi-bin/uploadVpn.cgi. Manipulating the Type argument leads to OS command injection, and the attack can be performed remotely.
Risk Assessment
Remote execution of arbitrary system commands on the device is possible, potentially leading to full router compromise. The exploit has been publicly disclosed and may be used.
Recommendation
Apply the vendor patch when available, and until then restrict access to the router's CGI interface from untrusted networks.
Other vulnerabilities in Wavlink WL-WN530BE1-A
See all- CVE-2026-120198Critical
A vulnerability was found in WAVLINK WL-WN530BE1-A V251117 in the con_check_read_finish function of /protocol.csp. Manipulation of the group_name/IP-FROM argument leads to command injection. The attack can be launched remotely and the exploit has been publicly disclosed.
- CVE-2026-113802Critical
Wavlink WL-WN530BE1-A firmware through M30BE1_V251117 contains an OS command injection vulnerability in the sub_23B54 function of the ioos binary, which passes the unsanitized file_id parameter of /protocol.csp?opt=ovpn_file requests with type=del to popen(). A remote unauthenticated attacker can send a forged IP-FROM: 127.0.0.1 header to bypass login and execute arbitrary commands as root.
- CVE-2026-109109Critical
The Wavlink WL-WN530BE1-A router version 251117 contains a stack-based buffer overflow in the strcpy function of /cgi-bin/ExportAllSettings.cgi in the Settings Export CGI component. Manipulating the HTTP_COOKIE/X-Cmd argument allows remote attack.
Original NVD description (English source)
A security vulnerability has been detected in Wavlink WL-WN530BE1-A 251117. This affects the function popen of the file /cgi-bin/uploadVpn.cgi. Such manipulation of the argument Type leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS