Live › vulnerability › CVE-2026-120281
WAVLINK WN536AX6-A firmware V260507 copies the openvpn_ip argument with strcpy into a stack buffer in /protocol.csp. VulDB says it can be attacked remotely without authentication and a public proof-of-concept exists. No exploitation in the wild is reported and no fixed firmware is known.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 01:23 UTC. All times on this page are UTC.
Owners of WAVLINK WN536AX6-A routers on firmware V260507, reachable over the network through the /protocol.csp handler. The sources do not say whether the OpenVPN feature must be enabled for the request to reach the vulnerable code. Devices not running this model or firmware are not affected.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| WN536AX6-A | vendor | V260507 | – |
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
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