CVE-2026-120279 Details
Description
A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is an unknown function of the file /protocol.csp of the component openvpn_cli Handler. Executing a manipulation of the argument file_id can lead to os command injection. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
A command injection vulnerability has been identified in the WAVLINK WN536AX6-A router, specifically in the OpenVPN client handler within the file '/protocol.csp'. This vulnerability arises from the 'file_id' parameter, which is not properly sanitized before being used in a shell command. Exploitation of this flaw allows for arbitrary command execution on the device's operating system, with the executed commands running under root privileges. The vulnerability can be exploited remotely, although it requires authentication. However, the authentication process can be easily bypassed, as the device is configured to allow passwordless login by default.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 2, 2026CISA-ADP
Assessed Nov 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/pipiyyb/cve/blob/main/WAVLINK%20WN536AX6-A/WN536AX6-A_file_id.md | [email protected] | ExploitTechnical Description |
| https://vuldb.com/cve/CVE-2026-120279 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/919788 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/429623 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/429623/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WAVLINK WN536AX6-A | V260507 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Nov 2, 2026 | New CVE Received | [email protected] |