CVE-2026-120239
WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injection
- State
- Published
- Severity
- 9.4 Critical
- Published
- Nov 1, 2026
- Updated
- Nov 1, 2026
- Reserved
- Oct 31, 2026
Description
A vulnerability was found in WAVLINK WN553X1-B V260403_2.0.0. This vulnerability affects the function sub_419DA8 of the file /bin/ioos of the component WireGuard CLI Handler. Performing a manipulation of the argument file_id results in os command injection. The attack is possible to be carried out 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 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P | VulDB |
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.9 Critical | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WN553X1-BWAVLINK |
|
References
- VDB-429598 | WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injectionvdb-entrytechnical-description
- VDB-429598 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-120239 | CVE Analysis and Reportthird-party-advisory
- Submit #919250 | Wavlink Router Firmware V260403_2.0.0 Command Injectionthird-party-advisory
- https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_wireguard_cli_command_injection.mdexploit
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