Vulnerability · Published Aug 3, 2026 · Assigned by VulDB
CVE-2026-18587Wavlink WL-NU516U1 Config Import os command injection
High 7.5
In plain English
A high-severity OS command injection in WL-NU516U1 from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).
Official description
A flaw has been found in Wavlink WL-NU516U1 708c073-mt7628. The impacted element is an unknown function of the component Config Import. Executing a manipulation of the argument Password can lead to os command injection. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Wavlink | WL-NU516U1 | 708c073-mt7628 |
Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
References
- VDB-385415 | Wavlink WL-NU516U1 Config Import os command injection vdb-entry, technical-description
- VDB-385415 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-18587 | CVE Analysis and Report third-party-advisory
- Submit #850494 | WAVLINK WL-NU516U1 2026-05-15 (build 708c073-mt7628) Command Injection third-party-advisory
- https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report.md broken-link
- https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-07-13-4b8a21f-mt7628-squashfs-sysupgrade.bin broken-link, patch