CVE-2026-3612 — HIGH (7.2) — White Hats Nepal

Vulnerability 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.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wavlink	Wl-Nu516U1 Firmware	m16u1_v240425
Wavlink	Wl-Nu516U1	-

Related Weaknesses (CWE)

CWE-74 CWE-77

References

https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.mdExploitThird Party Advisory
https://vuldb.com/?ctiid.349220Permissions RequiredVDB Entry
https://vuldb.com/?id.349220Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.754668Third Party AdvisoryVDB Entry

FAQ

What is CVE-2026-3612?

CVE-2026-3612 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 f...

How severe is CVE-2026-3612?

CVE-2026-3612 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3612?

Check the references section above for vendor advisories and patch information. Affected products include: Wavlink Wl-Nu516U1 Firmware, Wavlink Wl-Nu516U1.