CVE-2026-3612 Details
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.
A command injection vulnerability has been identified in the Wavlink NU516U1 router, specifically in the OTA online upgrade feature of the firmware version V240425. The issue arises in the '/cgi-bin/adm.cgi' component, within the 'sub_405AF4' function. The vulnerability allows authenticated remote attackers to execute arbitrary system commands by manipulating the 'firmware_url' parameter. This exploitation bypasses existing security measures and grants full root access to the device.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 9, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.349220 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.349220 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.754668 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wavlink wl-nu516u1 firmware | m16u1_v240425 |
CPE
Remediation
| |
| wavlink wl-nu516u1 | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 10, 2026 | Initial Analysis | [email protected] |
| Mar 6, 2026 | New CVE Received | [email protected] |