CVE-2026-120238
CriticalCVSS 9.9Summary
A vulnerability has been found in WAVLINK WN553X1-B (260403_2.0.0) in the sub_4162A8 function of /bin/ioos, within the ovpn_file Handler component. Manipulating the file_id argument leads to OS command injection. The attack can be executed remotely and the exploit has been disclosed to the public.
Risk Assessment
A remote attacker could execute arbitrary commands on the device, potentially taking control of the router and network. The public availability of the exploit increases the risk of attack.
Recommendation
Update the device firmware to a patched version or restrict access to the management interface. Until updated, consider isolating the device on the network.
Other vulnerabilities in WAVLINK WN553X1-B
See all- CVE-2026-120240Critical
A vulnerability was found in the WAVLINK WN553X1-B device (version V260403_2.0.0) in the sub_41A748 function of /bin/ioos, part of the WireGuard CLI Group Handler. Manipulating the group_id/group_name arguments can lead to OS command injection. The attack can be performed remotely and the exploit has been publicly disclosed.
- CVE-2026-120239Critical
A vulnerability was found in WAVLINK WN553X1-B (V260403_2.0.0) in the sub_419DA8 function of /bin/ioos, within the WireGuard CLI Handler component. Manipulating the file_id argument leads to OS command injection. The attack can be carried out remotely and the exploit has been made public.
- CVE-2026-120231Critical
A vulnerability was found in WAVLINK WN553X1-B V260403_2.0.0 in the function sub_416568 of /bin/ioos, part of the OpenVPN CLI Handler. Manipulating the file_id argument leads to OS command injection. The attack can be performed remotely and the exploit has been publicly disclosed.
- CVE-2026-120229Critical
A vulnerability was found in WAVLINK WN553X1-B version 260403_2.0.0 affecting the sub_416B50 function in /bin/ioos. Manipulation of the file_id argument leads to OS command injection. The attack can be carried out remotely and the exploit has been publicly disclosed.
- CVE-2026-120228Critical
A flaw was found in WAVLINK WN553X1-B version V260403_2.0.0 affecting the sub_416D88 function in /bin/ioos (ioos Service component). Manipulation of the group_id/group_name arguments can lead to OS command injection. The attack can be executed remotely and the exploit has been published.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS