CVE-2026-2565 describes a stack-based buffer overflow vulnerability in the Wavlink WL-NU516U1 firmware (version 20251208) within the sub_40785C function of the /cgi-bin/adm.cgi file, triggered by manipulating the 'time_zone' argument. This remotely exploitable vulnerability carries a CVSS score of 6.6 (Medium), indicating high impact on confidentiality, integrity, and availability, but with high attack complexity. While public exploit code exists, exploitation is considered difficult, and there is no evidence of active exploitation, Metasploit/Nuclei modules, or significant community discussion or media coverage. The vendor has not responded to disclosure attempts.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2025-12-08CPE matchmatch criteria | cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.