PT-2026-8359 · Wavlink · Wavlink Wl-Nu516U1

Haimianbaobao · Published 2026-02-03 · Updated 2026-02-16 · CVE-2026-2565

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Wavlink WL-NU516U1 version 20251208

Description A flaw exists in the function sub 40785C of the file '/cgi-bin/adm.cgi'. Manipulation of the time zone argument leads to a stack-based buffer overflow. This can be triggered remotely and is considered to have high complexity, though exploitation is difficult. The exploit has been publicly released. The vendor was notified but did not respond.

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

Exploit

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

BDU:2026-02352

CVE-2026-2565

Affected Products

Wavlink Wl-Nu516U1

References · 10

• 🔥 https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2565 · Security Note
• https://bdu.fstec.ru/vul/2026-02352 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2565 · Vendor Advisory
• https://vuldb.com/?submit.751133 · Note
• https://vuldb.com/?id.346172 · Note
• https://t.me/cveNotify/152125 · Telegram Post
• https://t.me/CVEtracker/44850 · Telegram Post
• https://twitter.com/CVEnew/status/2023456490040795231 · Twitter Post
• https://vuldb.com/?ctiid.346172 · Note