Vulnerability details
CVE-2026-120281
Wavlink WN536AX6-A
WAVLINK WN536AX6-A OpenVPN protocol.csp strcpy stack-based overflow
CVSS 4.0
10.0Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulDB) | 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 |
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulDB) | 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 |
| 10.0Critical | 3.0 | CVEProject cvelistV5 (CNA) (VulDB) | 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 |
| 10.0High | 2.0 | CVEProject cvelistV5 (CNA) (VulDB) | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Wavlink | WN536AX6-A | V260507 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://vuldb.com/vuln/429625 vdb-entrytechnical-description
- https://vuldb.com/vuln/429625/cti signaturepermissions-required
- https://vuldb.com/cve/CVE-2026-120281 third-party-advisory
- https://vuldb.com/submit/919790 third-party-advisory
- https://github.com/F-yyjy/cve/blob/main/WN536AX6-A_openvpn_ip.md exploit
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Details
- Published
- 2026-11-02
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- VulDB
- Kolun priority
- 37 · Medium
Exploit prediction (EPSS)
0.58%
Probability of exploitation in 30 days
48.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-121Stack-based Buffer Overflow
- CWE-119Memory Corruption