CVE-2025-10959
Published: 25 September 2025
Summary
CVE-2025-10959 is a medium-severity Injection (CWE-74) vulnerability in Wavlink Wl-Nu516U1 Firmware. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 44.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Command injection in /cgi-bin/firewall.cgi via dmz_flag enables exploitation of public-facing web application (T1190), indirect command execution (T1202 as noted in advisory), and abuse of network device CLI (T1059.008).
NVD 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…
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disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2025-10959 is a command injection vulnerability affecting the Wavlink NU516U1 router on firmware version M16U1_V240425. The flaw exists in the sub_401778 function of the /cgi-bin/firewall.cgi script, where improper handling of the dmz_flag argument enables attackers to inject arbitrary commands. It is classified under CWE-74 (Improper Neutralization of Special Elements) and CWE-77 (Command Injection), with a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
The vulnerability is exploitable remotely over the network by low-privileged users, such as authenticated administrative or user accounts, with low complexity and no user interaction required. Successful exploitation allows limited impacts, including partial disclosure of sensitive information, minor modification of data or settings, and temporary denial of service through command execution on the device.
Advisories on VulDB and a GitHub repository detail the issue and provide a proof-of-concept exploit. The vendor was contacted early regarding disclosure but has not responded, and no patches or official mitigations are available.
The exploit has been publicly disclosed and may be used by attackers targeting vulnerable devices.
Details
- CWE(s)