CVE-2026-120240Critical· 9.9▾ AbyssalPoC availableA vulnerability was determined in WAVLINK WN553X1-B V260403_2.0.0. This issue affects the function sub_41A748 of the file /bin/ioos of the component WireGuard CLI Group Handler. Executing a manipulation of the argument group_id/group_nam…
▾ 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 determined in WAVLINK WN553X1-B V260403_2.0.0. This issue affects the function sub_41A748 of the file /bin/ioos of the component WireGuard CLI Group Handler. Executing a manipulation of the argument group_id/group_name can lead to os command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. 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-2026-120239Critical· 9.9WAVLINK WN553X1-B WireGuard CLI ioos sub_419DA8 os command injection
CVE-2026-120231Critical· 9.9WAVLINK WN553X1-B OpenVPN CLI ioos sub_416568 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