WAVLINK WN553X1-B ovpn_file ioos sub_4162A8 os command injection

Summary

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.

Remediation

1. Inventory every WAVLINK WN553X1-B deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Advisoryhttps://vuldb.com/cve/CVE-2026-120238
• Advisoryhttps://vuldb.com/submit/919248
• Referencehttps://vuldb.com/vuln/429597
• Referencehttps://vuldb.com/vuln/429597/cti
• Referencehttps://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_ovpn_file_command_injection.md