CVE-2026-8190 Details
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.
A command injection vulnerability has been identified in the Wavlink NU516U1 USB Network Printer Server, specifically in the M16U1_V240425 firmware. The issue arises in the 'wan' function of the '/cgi-bin/adm.cgi' file, where user-supplied arguments such as 'ppp_username', 'ppp_passwd', 'rwan_ip', 'rwan_mask', and 'rwan_gateway' are not properly sanitized. This oversight allows remote attackers to execute arbitrary operating system commands by crafting a specific request. The vulnerability has been publicly disclosed, and a proof-of-concept exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_3/3.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/800729 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362342 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362342/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wavlink wl-nu516u1 firmware | m16u1_v240425 |
CPE
Remediation
| |
| wavlink wl-nu516u1 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 9, 2026 | New CVE Received | [email protected] |