CVE-2025-10963: wavlink nu516u1 Injection

Vulnerability summary

CVE-2025-10963 is a high (CVSS 8.8) Injection vulnerability in wavlink nu516u1. EPSS estimates a 6.81% chance of exploitation in the next 30 days, higher than 93.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 25-09-2025
   PublishedVulnerability first disclosed.
2. 25-09-2025
   Last modifiedVulnerability information updated.

Description

A security flaw has been discovered in Wavlink NU516U1 M16U1_V240425. Affected is the function sub_4016F0 of the file /cgi-bin/firewall.cgi. The manipulation of the argument del_flag results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.