Vertiv Avocent ACS8000 up to 2.32.4 wsserver system/popen os command injection

Summaryinfo

A vulnerability described as very critical has been identified in Vertiv Avocent ACS8000 up to 2.32.4. The impacted element is the function system/popen of the component wsserver. Executing a manipulation can lead to os command injection. This vulnerability is handled as CVE-2026-65184. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as very critical was found in Vertiv Avocent ACS8000 up to 2.32.4. This vulnerability affects the function system/popen of the component wsserver. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at runzero.com. This vulnerability was named CVE-2026-65184 since 07/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/26/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Vertiv

Name

• Avocent ACS8000

Version

• 2.32.0
• 2.32.1
• 2.32.2
• 2.32.3
• 2.32.4

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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