CVE-2026-120238 Details
Description
A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0. This affects the function sub_4162A8 of the file /bin/ioos of the component ovpn_file Handler. Such manipulation of the argument file_id leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.
A command injection vulnerability has been identified in the WAVLINK WN553X1-B router, specifically in the firmware version V260403_2.0.0. This vulnerability allows authenticated attackers to execute arbitrary operating system commands with root privileges. The issue arises in the 'ovpn_file' handler, where user-controlled input is improperly sanitized before being passed to a command execution function. Exploitation can be performed remotely by sending a crafted HTTP POST request to the device.
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 1, 2026CISA-ADP
Assessed Nov 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_ovpn_file_command_injection.md | [email protected] | ExploitTechnical Description |
| https://vuldb.com/cve/CVE-2026-120238 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/919248 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/429597 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/429597/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 WN553X1-B | V260403_2.0.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 6, 2026 | CVE Modified | CISA-ADP |
| Nov 1, 2026 | New CVE Received | [email protected] |