CVE-2026-65184 Avocent ACS8000 wsserver command injection

CriticalCVSS 9.8 EPSS 0.42%

Published: 2026-10-26 16:07
Updated: 2026-10-26 20:41
Exploit status: No public exploit known

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.

Affected products

Product	Affected versions	Fixed in
Vertiv Avocent ACS8000	<= 2.32.4	No fix listed

References

www.runzero.com third-party-advisory
www.runzero.com related

CVSS v3.1

9.8 Critical

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

All scores (2)

v3.1 9.8 · runzero
v3.1 9.8 · 44488dab-36db-4358-99f9-bc116477f914

Weakness & likelihood

EPSS (exploitation probability, 30 days): 0.42% (percentile 36.4)
CWE: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.