PT-2026-23911 · Wavlink · Wavlink Nu516U1

Haimianbaobao + 1 · Published 2026-03-08 · Updated 2026-03-08 · CVE-2026-3704

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Wavlink NU516U1 251208 (affected versions not specified)

Description A flaw exists in the function sub 405B2C within the file /cgi-bin/firewall.cgi. This issue allows for command injection and can be exploited remotely. The exploit has been publicly disclosed.

Recommendations Upgrade the affected component to a fixed version.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

CVE-2026-3704

Affected Products

Wavlink Nu516U1

References · 11

• 🔥 https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/wavlink_DMZ.md · Exploit
• 🔥 https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/wavlink_DMZ.md#exp · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3704 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3704 · Vendor Advisory
• https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-02-27-2fcf6ae-mt7628-squashfs-sysupgrade.bin · Patch
• https://vuldb.com/?ctiid.349650 · Note
• https://t.me/cveNotify/154654 · Telegram Post
• https://vuldb.com/?id.349650 · Note
• https://vuldb.com/?submit.759233 · Note
• https://twitter.com/CVEnew/status/2030747887697817871 · Twitter Post
• https://t.me/CVEtracker/46778 · Telegram Post