CVE-2026-65184 - Vulnerability Details - OpenCVE

The root-privileged `wsserver` terminal-bridge daemon builds a shell command from client-supplied WebSocket fields and passes it to `system()` and `popen()` without quoting, escaping, or character-set validation. The daemon's public-key session path performs no appliance-session check.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Vertiv	Avocent Acs8000

No data.

No data.

References

Link	Providers
https://www.runzero.com/advisories/avocent-acs8000-wsserver-cmdinj-cve-2026-65184
https://www.runzero.com/blog/lights-out-exposed/

History

Wed, 28 Oct 2026 22:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Vertiv Vertiv avocent Acs8000
Vendors & Products		Vertiv Vertiv avocent Acs8000

Mon, 26 Oct 2026 17:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mon, 26 Oct 2026 15:00:00 +0000

Type	Values Removed	Values Added
Description		The root-privileged `wsserver` terminal-bridge daemon builds a shell command from client-supplied WebSocket fields and passes it to `system()` and `popen()` without quoting, escaping, or character-set validation. The daemon's public-key session path performs no appliance-session check.
Title		Avocent ACS8000 wsserver command injection
Weaknesses		CWE-78
References		https://www.runzero.com/advisories/avocent-acs8000-wsserver-cmdinj-cve-2026-65184 https://www.runzero.com/blog/lights-out-exposed/
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: runZero

Published: 2026-10-26T14:07:08.235Z

Updated: 2026-10-26T16:46:46.017Z

Reserved: 2026-07-21T20:14:34.064Z

Link: CVE-2026-65184

Vulnrichment

Updated: 2026-10-26T16:41:00.493Z

NVD

Status : Deferred

Published: 2026-10-26T15:16:41.627

Modified: 2026-10-26T18:41:21.450

Link: CVE-2026-65184

Redhat

No data.

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