CVE-2026-3612

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 v4.0

7.3 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

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

CVSS v2.0

8.3 HIGHAV:N/AC:L/Au:M/C:C/I:C/A:C

EPSS

12.67% chance of exploitation in the next 30 days, 96th percentile

Published

2026-03-06

Updated

2026-03-09

Proof-of-concept exploits (1)

• Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-2565
• CVE-2026-2566
• CVE-2026-2567
• CVE-2026-2615
• CVE-2026-3613
• CVE-2026-3703