CVE-2026-3612
Wavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 command injection
- State
- Published
- Severity
- 8.6 High
- Published
- Mar 6, 2026
- Updated
- Mar 9, 2026
- Reserved
- Mar 5, 2026
Description
A vulnerability was determined in Wavlink WL-NU516U1 V240425. This affects the function sub_405AF4 of the file /cgi-bin/adm.cgi of the component OTA Online Upgrade. This manipulation of the argument firmware_url causes command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.2 High | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 8.3 High | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-NU516U1Wavlink |
|
References
- VDB-349220 | Wavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 command injectionvdb-entrytechnical-description
- VDB-349220 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #754668 | Wavlink NU516U1 V240425 Command Injectionthird-party-advisory
- https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.mdexploit
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