CVE-2026-120345Critical· 10.0▾ AbyssalPoC availableA vulnerability was found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. This impacts the function sub_41a430 of the file /bin/ioos of the component DNS Resolution Handler. Performing a manipulation of the argument data results in os com…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 55 · likelihood 0.4 · 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
2.0%
Exploit / PoC code exists
A vulnerability was found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. This impacts the function sub_41a430 of the file /bin/ioos of the component DNS Resolution Handler. Performing a manipulation of the argument data results in os command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
WN551X3-A M51X3_V251020-WO-182e965Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-120344Critical· 10.0WAVLINK WN551X3-A WireGuard CLI Group ioos system os command injection
CVE-2026-120280Critical· 10.0WAVLINK WN536AX6-A WireGuard protocol.csp wireguard_cli_group handler os command injection
CVE-2026-120276Critical· 10.0WAVLINK WN536AX6-A Web Management ioos sub_416760 os command injection
CVE-2026-120229Critical· 9.1WAVLINK WN553X1-B ioos sub_416B50 os command injection
CVE-2026-120195Critical· 10.0WAVLINK WL-WN579A3-A Initial Setup Wizard adm.cgi set_wzdgwMesh os command injection
CVE-2026-120197Critical· 9.9WAVLINK WL-WN530HG4B wapi.cgi port_forward os command injection