Vulnerability · Published Sep 25, 2025 · Assigned by VulDB

CVE-2025-10959Wavlink NU516U1 firewall.cgi sub_401778 command injection

Medium 6.3

In plain English

A medium-severity command injection in NU516U1 from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 6.6% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)6.6%top 6.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Wavlink	NU516U1	M16U1_V240425

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-325827 | Wavlink NU516U1 firewall.cgi sub_401778 command injection vdb-entry, technical-description
VDB-325827 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #652769 | Wavlink NU516U1 M16U1_V240425 Command Injection third-party-advisory
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/DMZ.md related
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/DMZ.md#poc exploit