Skip to main content
IMMUNITYSEC

CVE-2026-3612

Wavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 command injection

8.6
HIGH
CVSS 4.0
EPSS 10.0% · 95th pctCWE-77CWE-74
2026-03-06•Updated 2026-03-09

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.

Severity

CVSS 4.0 · CNA8.6 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
CVSS 3.1 · CNA7.2 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
CVSS 3.0 · CNA7.2 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
CVSS 2.0 · CNA8.3 HIGH
AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
SSVC · CISA-ADP
Exploitationpoc
Automatableno
Technical impacttotal

Affected Products

VendorProductAffected versions
WavlinkWL-NU516U1
V240425

References

4 Links

Record Details

Published
2026-03-06
Last updated
2026-03-09
Assigner (CNA)
VulDB
Credited to
haimianbaobao (VulDB User); VulDB

More from Wavlink

CVE-2026-36625.8

Wavlink WL-NU516U1 adm.cgi usb_p910 command injection

CVE-2026-36615.8

Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection

CVE-2026-82306.5

Wavlink NU516U1 login.cgi sys_login1 os command injection

CVE-2026-82296.5

Wavlink NU516U1 wireless.cgi WifiBasic os command injection

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.