CVE-2026-6483CWE-77CWE-78

Wavlink WL-WN530H4 internet.cgi snprintf os command injection

High · published April 17, 2026

CVSS v4.0
8.6
EPSS
3%
Percentile
88.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
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
EPSS
0.03178 · 88.0th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-04-17T10:30Z
EPSS history
Timeline
  • 25 SEP 03:27Z
    EPSS moved 13% → 3%
    epss
  • 17 APR 10:30Z
    Wavlink WL-WN530H4 internet.cgi snprintf os command injection
    cvelistv5