Description
A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
References (4)
Core 4
Core References
Signature, Permissions Required signature
permissions-required
VDB-353192 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.353192
Third Party Advisory third-party-advisory
Submit #776217 | Wavlink NU516U1 V260227 Stack-based Buffer Overflow
https://vuldb.com/?submit.776217
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-353192 | Wavlink WL-NU516U1 nas.cgi ftext stack-based overflow
https://vuldb.com/?id.353192
Scores
CVSS v3
8.8
EPSS
0.0085
EPSS Percentile
53.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/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 (2)
Wavlink/WL-NU516U1
260227
wavlink/wl-nu516u1_firmware
m16u1_v260227
Published
Mar 26, 2026
Tracked Since
Mar 26, 2026