CVE-2026-49199 Predator Connect W6x: RCE via MQTT

Critical 10.0 Published 29 May 2026 Updated 29 May 2026

Attackers can execute arbitrary commands with root privileges on Predator Connect W6x devices via crafted MQTT messages.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-49199?

CVE-2026-49199 is a critical command injection vulnerability in Acer Predator Connect W6x, published on 29 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Crafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device.

Weakness: CWE-77

Which versions are affected by CVE-2026-49199?

It affects 1 product.

Products include Acer Predator Connect W6x Firmware.

How do I fix CVE-2026-49199?

No fix has been published for CVE-2026-49199 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-49199 being exploited?

There is no known exploitation of CVE-2026-49199 in the wild and no public exploit code.

Sources

Also known as GHSA-2456-wh5h-jwph.