CVE-2026-8191 Details
Description
A vulnerability was identified in Wavlink NU516U1 M16U1_V240425. This affects the function wifi_region of the file /cgi-bin/adm.cgi. Such manipulation of the argument skiplist1/skiplist2 leads to os command injection. The attack can be launched remotely. The exploit is publicly available and might be used. 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 'wifi_region' function of the '/cgi-bin/adm.cgi' file, where the 'skiplist1' and 'skiplist2' arguments can be manipulated to execute arbitrary operating system commands. This vulnerability can be exploited remotely, and a proof of concept is publicly 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 12, 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_4/4.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/800730 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362343 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362343/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] |