CVE-2026-49196
Wi-Fi MAC Address Command Injection in Device Blocking Feature
Publication date: 2026-05-29
Last updated on: 2026-05-29
Assigner: 8fc372e3-d9c5-46e4-9410-38469745c639
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| acer | acer_connect_w6x_router | From w6x_gbl_2.00.000008 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-77 | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The provided information does not explicitly mention the impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.
Can you explain this vulnerability to me?
This vulnerability occurs because the Wi-Fi device blocking feature does not properly sanitize the MAC address input. As a result, an attacker can inject and execute arbitrary shell commands on the device.
How can this vulnerability impact me? :
The vulnerability allows an attacker to execute arbitrary shell commands on the affected device, which can lead to unauthorized control, data compromise, disruption of network services, or further exploitation of the device.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability involves command injection via unsanitized MAC address input in the router's web admin panel. Detection can focus on monitoring for unusual or unauthorized shell command executions or suspicious input patterns in MAC address fields.
Specific commands are not provided in the available resources. However, general detection methods could include reviewing router logs for abnormal entries, monitoring network traffic for suspicious activity on the router's web interface, and checking for unexpected processes or shell commands executed on the device.
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the Acer Connect W6x router firmware to version W6x_GBL_2.00.000008 or later, which includes a fix for this vulnerability by improving input validation on the MAC address fields in the web admin panel.
Users should perform the firmware update through the router's admin console and avoid restarting or unplugging the router during the update process to ensure a successful upgrade.