A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection.
It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue.
Upgrading the affected component is recommended.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://dl.wavlink.com/firmware/RD/root_uImage_WN530H4-A_2026.04.16.bin
cna@vuldb.com
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing…
cna@vuldb.com
https://vuldb.com/submit/783055
cna@vuldb.com
https://vuldb.com/vuln/358021
cna@vuldb.com
https://vuldb.com/vuln/358021/cti
cna@vuldb.com