CVE-2026-8190CWE-77CWE-78

Wavlink NU516U1 adm.cgi wan os command injection

Medium · published May 9, 2026

CVSS v4.0
5.3
EPSS
9%
Percentile
95.0
In the wild
Unconfirmed
What it is

A vulnerability was determined in Wavlink NU516U1 M16U1_V240425. Affected by this issue is the function wan of the file /cgi-bin/adm.cgi. This manipulation of the argument ppp_username/ppp_passwd/rwan_ip/rwan_mask/rwan_gateway is directly passed by the attacker/so we can control the ppp_username/ppp_passwd/rwan_ip/rwan_mask/rwan_gateway causes os command injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.08508 · 95.0th 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
2026-05-09T17:15Z
EPSS history
Timeline
  • 09 MAY 17:15Z
    Wavlink NU516U1 adm.cgi wan os command injection
    cvelistv5