CVE-2026-120281
WAVLINK WN536AX6-A OpenVPN protocol.csp strcpy stack-based overflow
- State
- Published
- Severity
- 10.0 Critical
- Published
- Nov 2, 2026
- Updated
- Nov 2, 2026
- Reserved
- Nov 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 10.0 Critical | 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/E:P | VulDB |
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 10.0 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WN536AX6-AWAVLINK |
|
References
- VDB-429625 | WAVLINK WN536AX6-A OpenVPN protocol.csp strcpy stack-based overflowvdb-entrytechnical-description
- VDB-429625 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-120281 | CVE Analysis and Reportthird-party-advisory
- Submit #919790 | Wavlink WN536AX6 V260507 CWE-121third-party-advisory
- https://github.com/F-yyjy/cve/blob/main/WN536AX6-A_openvpn_ip.mdexploit
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