High severity · published May 9, 2026
CVE-2026-8188
Wavlink NU516U1 adm.cgi change_wifi_password os command injection
8.8
CVSS
8.9%
EPSS
No
On KEV
Description
A vulnerability has been found in Wavlink NU516U1 M16U1_V240425. Affected is the function change_wifi_password of the file /cgi-bin/adm.cgi. The manipulation of the argument wl_channel/wl_Pass/EncrypType leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.9% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NU
NU516U1 · Wavlink
M16U1_V240425 · source: vendor
WF
Wl-nu516u1 Firmware · Wavlink
m16u1_v240425 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8188
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8188
Exploit
https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_1/1.md
Third Party Advisory
https://vuldb.com/submit/800727
Third Party Advisory
https://vuldb.com/vuln/362340
Permissions Required
https://vuldb.com/vuln/362340/cti
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