WAVLINK WN536AX6-A V260507_2.0.0 WireGuard CLI Group /bin/ioos sub_41a1d8 group_name os command injection

Summaryinfo

A vulnerability has been found in WAVLINK WN536AX6-A V260507_2.0.0 and classified as very critical. Impacted is the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Performing a manipulation of the argument group_name results in os command injection. This vulnerability is identified as CVE-2026-120277. The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability was found in WAVLINK WN536AX6-A V260507_2.0.0. It has been classified as very critical. This affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. The manipulation of the argument group_name with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-120277. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/01/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• WAVLINK

Name

• WN536AX6-A

Version

• V260507_2.0.0

License

• commercial

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Submitinfo

Accepted

• Submit #919503: Wavlink Router Firmware V260507_2.0.0 OS Command Injection (by shuyi)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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