CVE-2026-120231 Details
Description
A vulnerability was determined in WAVLINK WN553X1-B V260403_2.0.0. The affected element is the function sub_416568 of the file /bin/ioos of the component OpenVPN CLI Handler. This manipulation of the argument file_id causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
A command injection vulnerability has been identified in the WAVLINK WN553X1-B router, specifically in the OpenVPN CLI Handler component. This vulnerability exists in the V260403_2.0.0 firmware version. The issue arises in the function sub_416568 within the file /bin/ioos. The vulnerability allows for OS command injection by manipulating the file_id parameter, which is passed to snprintf without proper input validation and subsequently executed via popen. This exploitation can be initiated remotely, and the vulnerability has been publicly disclosed.
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 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_openvpn_cli_command_injection.md | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-120231 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/919247 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/429590 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/429590/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
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Nov 1, 2026 | New CVE Received | [email protected] |