---
title: "CVE-2026-65184: wsserver - Command Injection"
description: "wsserver terminal-bridge daemon contains a command injection caused by unsanitized client-supplied WebSocket fields passed to system() and popen(), letting remote attackers execute arbitrary commands, exploit requires network access."
url: https://panop.io/threat-heartbeat/CVE-2026-65184/
---

# CVE-2026-65184 wsserver - Command Injection

wsserver terminal-bridge daemon contains a command injection caused by unsanitized client-supplied WebSocket fields passed to system() and popen(), letting remote attackers execute arbitrary commands, exploit requires network access.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-65184)

## Details

Type

Command Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-78](https://cwe.mitre.org/data/definitions/78.html)

## Vendor fix

Update to the latest version with proper input sanitization and validation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-65184](https://nvd.nist.gov/vuln/detail/CVE-2026-65184)
- [https://www.runzero.com/advisories/avocent-acs8000-wsserver-cmdinj-cve-2026-65184](https://www.runzero.com/advisories/avocent-acs8000-wsserver-cmdinj-cve-2026-65184)
- [https://www.runzero.com/blog/lights-out-exposed/](https://www.runzero.com/blog/lights-out-exposed/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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