CVE-2026-65184

Avocent ACS8000 wsserver command injection

Published Oct 26, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Vertiv
Vertiv avocent Acs8000
Vendors & Products Vertiv
Vertiv avocent Acs8000
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
runZero
Published
Updated
Oct 26, 2026, 4:46 PM
Reserved
Jul 21, 2026, 8:14 PM
Status
Deferred
Published
Oct 26, 2026, 3:16 PM
Modified
Oct 26, 2026, 6:41 PM