# CVE-2026-49196: Acer Connect W6x command injection in Wi-Fi device blocking feature

Source: https://junglewise.ai/threats/cve-2026-49196-acer-connect-w6x-command-injection-in-wi-fi-device-blocking  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-29. Updated: 2026-05-29  
License: CC BY 4.0 with a link back

CVE-2026-49196 · Severity: info · CVSS 8.6 · Published 2026-05-29

Acer Connect W6x routers, which provide wireless internet connectivity for homes and offices, contain a security flaw in their device management interface. An attacker with administrative access can exploit the Wi-Fi device blocking feature to run unauthorized system commands. This could allow a malicious actor to take full control of the router, potentially leading to network surveillance or service disruption.

Technologies: [Acer Connect W6x Router](https://junglewise.ai/threats/technologies/connect-w6x-router). Vendors: [Acer](https://junglewise.ai/threats/vendors/acer).

## Quick answers

**Is CVE-2026-49196 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-49196 being exploited in the wild.

**How severe is CVE-2026-49196?** Informational severity, with a CVSS score of 8.6, published 29 May 2026.

**Which products and versions are affected?** Acer Connect W6x Router W6x_GBL_2.00.000005 and earlier.

**Is there a fix for CVE-2026-49196?** A patch was published on 2026-05-29: Fixed in firmware version W6x_GBL_2.00.000008 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-49196 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-49196?** Check whether you run Acer Connect W6x Router at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A command injection vulnerability (CWE-77) exists in the Web Admin Panel of Acer Connect W6x routers. The vulnerability is located within the Wi-Fi device blocking feature, where the application fails to properly sanitize input in MAC address fields. An authenticated attacker with high privileges (administrator) can inject special characters to execute arbitrary shell commands on the underlying operating system. The attack is reachable over the network via the web interface. Acer has addressed this in firmware version W6x_GBL_2.00.000008 by refining input validation logic.

## Affected products

- Acer Connect W6x Router W6x_GBL_2.00.000005 and earlier

## Timeline

- 2026-05-29: disclosed
- 2026-05-29: advisory
- 2026-05-29: patched: Fixed in firmware version W6x_GBL_2.00.000008

## References

- [https://community.acer.com/en/kb/articles/19672](https://community.acer.com/en/kb/articles/19672)

## Related threats

- [Acer Connect W6x command injection in MQTT broker](https://junglewise.ai/threats/cve-2026-49199-acer-connect-w6x-command-injection-in-mqtt-broker)
- [Acer Connect W6x improper access control in MQTT broker](https://junglewise.ai/threats/cve-2026-49198-acer-connect-w6x-improper-access-control-in-mqtt-broker)
- [Acer Connect W6x Router authentication bypass in app endpoints](https://junglewise.ai/threats/cve-2026-49197-acer-connect-w6x-router-authentication-bypass-in-app-endpoints)
- [Acer Connect W6x unauthenticated debug service in mtk_dut](https://junglewise.ai/threats/cve-2026-49195-acer-connect-w6x-unauthenticated-debug-service-in-mtk-dut)