WAVLINK WN551X3-A WireGuard CLI Group ioos system os command injection

Summary

A vulnerability has been found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. This affects the function system of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. The attack may be performed from remote. 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 WN551X3-A 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-2026-120344
• Advisoryhttps://vuldb.com/submit/919551
• Referencehttps://vuldb.com/vuln/429669
• Referencehttps://vuldb.com/vuln/429669/cti
• Referencehttps://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN551X3-A%20Router/WAVLINK_WN551X3-A_wireguard_cli_group_command_injection.md