CVE-2026-6483

Wavlink WL-WN530H4 internet.cgi snprintf os command injection

CVSS 8.6 HIGHEPSS 14.1%CWE-77 CWE-78

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Affected products

Wavlink · WL-WN530H4

public PoCs found — 1

cve_referencegithub.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/vuldb_submission_report.mdunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://dl.wavlink.com/firmware/RD/root_uImage_WN530H4-A_2026.04.16.bin https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/vuldb_submission_report.md https://vuldb.com/submit/783055 https://vuldb.com/vuln/358021 https://vuldb.com/vuln/358021/cti