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

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

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 May 2026
- **Updated:** 29 May 2026
- **Also known as:** GHSA-2456-wh5h-jwph

## 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 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-49199?

It affects 1 product.


Products: 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.

## Is CVE-2026-49199 being exploited?

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

## Other vulnerabilities in Acer Predator Connect W6x

- [CVE-2026-49197](https://insights.sbomify.com/CVE-2026-49197/): Predator Connect W6x: Improper Authentication (critical 10.0)
- [CVE-2026-49195](https://insights.sbomify.com/CVE-2026-49195/): Predator Connect W6x: unauthenticated Debug Service (high 8.7)
- [CVE-2026-49196](https://insights.sbomify.com/CVE-2026-49196/): Predator Connect W6x: Web Interface Command Injection (high 8.6)
- [CVE-2026-49198](https://insights.sbomify.com/CVE-2026-49198/): Predator Connect W6x: MQTT Broker Access Control (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49199 and fix it if it is affected.

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

Affected product: Acer Predator Connect W6x. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-49199/ (Markdown: https://insights.sbomify.com/CVE-2026-49199/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49199
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49199
- OSV: https://osv.dev/vulnerability/CVE-2026-49199

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49199/
Summaries are generated and may contain mistakes; the official description above is the record.