CVE-2026-120239Critical· 9.9▾ AbyssalPoC availableA 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 o…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 54.5 · likelihood 0.3 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
1.7%
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.
WN553X1-B V260403_2.0.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-120229Critical· 9.1WAVLINK WN553X1-B ioos sub_416B50 os command injection
CVE-2026-120231Critical· 9.9WAVLINK WN553X1-B OpenVPN CLI ioos sub_416568 os command injection
CVE-2026-120240Critical· 9.9WAVLINK WN553X1-B WireGuard CLI Group ioos sub_41A748 os command injection
CVE-2026-120228Critical· 9.9WAVLINK WN553X1-B ioos Service sub_416D88 os command injection
CVE-2026-120238Critical· 9.9WAVLINK WN553X1-B ovpn_file ioos sub_4162A8 os command injection
CVE-2026-120280Critical· 10.0WAVLINK WN536AX6-A WireGuard protocol.csp wireguard_cli_group handler os command injection