Description
A vulnerability was identified in Wavlink WL-NU516U1 V240425. This vulnerability affects the function sub_401A0C of the file /cgi-bin/login.cgi. Such manipulation of the argument ipaddr leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.
References (4)
Core 4
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.349221
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.349221
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.755341
Third Party Advisory exploit
https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.md
Scores
CVSS v3
7.2
EPSS
0.0071
EPSS Percentile
48.5%
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
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-119
CWE-121
Status
published
Products (1)
wavlink/wl-nu516u1_firmware
m16u1_v240425
Published
Mar 06, 2026
Tracked Since
Mar 06, 2026