PT-2026-39337 · Wavlink · Nu516U1

Ziyue Xie · Published 2026-05-09 · Updated 2026-05-09 · CVE-2026-8189

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Wavlink NU516U1 M16U1 V240425

Description An OS command injection flaw exists in the wzdrepeater() function within the '/cgi-bin/adm.cgi' endpoint. This issue allows a remote attacker to execute arbitrary operating system commands by manipulating the wlan bssid, sel Automode, or sel EncrypTyp arguments.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the '/cgi-bin/adm.cgi' endpoint or avoid using the wlan bssid, sel Automode, and sel EncrypTyp parameters.

Exploit

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

CVE-2026-8189

Affected Products

Nu516U1

References · 9

• 🔥 https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_2/2.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8189 · Security Note
• https://twitter.com/VulmonFeeds/status/2053167770171289681 · Twitter Post
• https://vuldb.com/vuln/362341/cti · Note
• https://vuldb.com/submit/800728 · Note
• https://t.me/CVEtracker/53226 · Telegram Post
• https://t.me/cveNotify/162875 · Telegram Post
• https://twitter.com/CVEnew/status/2053174610988875870 · Twitter Post
• https://vuldb.com/vuln/362341 · Note