CVE-2026-65184

Avocent ACS8000 wsserver command injection

CRITICAL
9.8
CVSS Score
Published: October 26, 2026 at 02:07 PM UTC
Updated: October 26, 2026 at 06:41 PM UTC
1 product affected across 1 vendorAvocent ACS8000

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Severity
CRITICAL9.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALrunZero
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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