CVE-2026-120281

WAVLINK WN536AX6-A Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

CVSS: 10, critical critical CVSS v3.1
EPSS, next 30 days: n/a
Exploitation: No public evidence
Published: 2 Nov 2026today

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.

Details

Vendor: WAVLINK
Product: WN536AX6-A
Weakness: CWE-119 (opens in a new tab)
Status: Received
Updated: 2 Nov 2026
Assigner: cna@vuldb.com

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

References 5

Other references 5

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other WAVLINK CVEs

Every WAVLINK CVE we hold

Same vendor in what we hold, not a known link between the flaws.

CVE-2026-120276 WAVLINK WN536AX6-A Command Injection Vulnerability 10, critical
CVE-2026-120277 WAVLINK WN536AX6-A Command Injection Vulnerability 10, critical
CVE-2026-120279 WAVLINK WN536AX6-A Command Injection Vulnerability 10, critical
CVE-2026-120280 WAVLINK WN536AX6-A Command Injection Vulnerability 10, critical
CVE-2026-120282 WAVLINK WN536AX6-A Command Injection Vulnerability 9.9, critical
CVE-2026-120195 WAVLINK WL-WN579A3-A Command Injection Vulnerability EPSS 2% 10, critical
CVE-2026-120196 WAVLINK WN579X3-D Command Injection Vulnerability EPSS 2% 9.9, critical
CVE-2026-120197 WAVLINK WL-WN530HG4B Command Injection Vulnerability EPSS 2% 9.9, critical

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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 2 Nov 2026, not the live upstream state.