PT-2026-23625 · Wavlink · Wavlink Wl-Nu516U1

Haimianbaobao + 1 · Published 2026-03-06 · Updated 2026-03-11 · CVE-2026-3613

Positive Technologies (AI Summary)

CVSS v2.0

8.3

High

Base vector

AV:N/AC:L/Au:M/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Wavlink WL-NU516U1 version V240425

Description A stack-based buffer overflow exists in the function sub 401A0C within the file /cgi-bin/login.cgi. Manipulation of the ipaddr argument can trigger this issue, allowing for remote exploitation. The exploit is publicly available.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-3613

Affected Products

Wavlink Wl-Nu516U1

References · 10

• 🔥 https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/ipaddr_Stack%20Buffer%20Overflow.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3613 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3613 · Vendor Advisory
• https://vuldb.com/?ctiid.349221 · Note
• https://vuldb.com/?id.349221 · Note
• https://twitter.com/VulmonFeeds/status/2029789430307860942 · Twitter Post
• https://vuldb.com/?submit.755341 · Note
• https://twitter.com/cracbot/status/2031686811878359513 · Twitter Post
• https://t.me/CVEtracker/46534 · Telegram Post
• https://t.me/cveNotify/154451 · Telegram Post