CVE-2026-120240
Critical
Description
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.
SeverityCritical
CVSS9.9
Exploit probability—
ProductWavlink Wn553x1-b
PublishedNov 1, 2026
First seenNov 4, 2026
Weakness typeCWE-78OS command injectionCWE-77Command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wavlink wn553x1-b | V260403_2.0.0 | — |
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