CVE-2026-8190: Wavlink NU516U1 adm.cgi wan os command injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-09 · updated 2026-07-24
Weakness: CWE-77

Description

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.

Affected products

Wavlink NU516U1: m16u1_v240425

References

https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_3/3.md
https://vuldb.com/submit/800729
https://vuldb.com/vuln/362342
https://vuldb.com/vuln/362342/cti

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