CVE-2026-120281

critical

Description

A vulnerability was found in WAVLINK WN536AX6-A V260507. This affects the function strcpy of the file /protocol.csp of the component OpenVPN Handler. The manipulation of the argument openvpn_ip results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

References

https://vuldb.com/vuln/429625/cti

https://vuldb.com/vuln/429625

https://vuldb.com/submit/919790

https://vuldb.com/cve/CVE-2026-120281

https://github.com/F-yyjy/cve/blob/main/WN536AX6-A_openvpn_ip.md

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114914

Details

Source: Mitre, NVD

Published: 2026-11-02

Updated: 2026-11-02

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 10

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Severity: Critical