CVE-2026-120239

CVSS 9.9 (critical) · published 2026-11-01

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.

Weakness: CWE-77, CWE-78

Source: NVD CVE-2026-120239

References

• https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_wireguard_cli_command_injection.md
• https://vuldb.com/cve/CVE-2026-120239
• https://vuldb.com/submit/919250
• https://vuldb.com/vuln/429598
• https://vuldb.com/vuln/429598/cti

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