Description
A vulnerability has been found in Wavlink NU516U1 M16U1_V240425. The affected element is the function sub_401778 of the file /cgi-bin/firewall.cgi. Such manipulation of the argument dmz_flag leads to command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.325827
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.325827
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.652769
Exploit, Third Party Advisory related
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/DMZ.md
Exploit, Third Party Advisory exploit
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/DMZ.md#poc
Scores
CVSS v3
6.3
EPSS
0.0022
EPSS Percentile
44.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-74
CWE-77
Status
published
Products (1)
wavlink/wl-nu516u1_firmware
m16u1_v240425
Published
Sep 25, 2025
Tracked Since
Feb 18, 2026