Description
A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References (4)
Core 4
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.346173
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.346173
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.751908
Various Sources exploit
https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/firmware_url.md
Scores
CVSS v3
7.2
EPSS
0.0006
EPSS Percentile
17.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-119
CWE-121
Status
published
Products (2)
Wavlink/WL-NU516U1
130
Wavlink/WL-NU516U1
260
Published
Feb 16, 2026
Tracked Since
Feb 18, 2026