CVE-2026-120277
CriticalCVSS 10.0Summary
A vulnerability was detected in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_41a1d8 function of the /bin/ioos file, related to the WireGuard CLI group handler. Manipulation of the group_name argument leads to OS command injection. The issue can be exploited remotely and a public exploit is already available.
Risk Assessment
A remote attacker can execute arbitrary system commands on the device, taking control of it and gaining access to the organization's network. Since the exploit is public, the risk of rapid exploitation is high.
Recommendation
Update the device firmware to the vendor-patched version as soon as possible, or restrict access to the management interface and WireGuard CLI to trusted networks only.
Other vulnerabilities in WAVLINK WN536AX6-A
See all- CVE-2026-120278Medium
A vulnerability was detected in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_416d48/sub_41a7c0 functions of the /bin/ioos file, within the VPN client list handler component. Manipulation of the opt argument results in missing authentication. The attack can be initiated remotely and the exploit is now public.
- CVE-2026-120276Critical
A weakness was identified in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_416760 function of the /bin/ioos file, within the web management interface component. Manipulation of the group_name argument causes OS command injection. The attack can be initiated remotely and the exploit has been made publicly available.
Original NVD description (English source)
A security vulnerability has been detected in WAVLINK WN536AX6-A V260507_2.0.0. This issue affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS