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TI-2026-80409 Aliases CVE-2026-65184GHSA-f563-j7vj-6j8f

Command injection in Vertiv Avocent ACS8000 wsserver daemon

Priority MEDIUM 49CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

Vertiv Avocent ACS8000 versions from 0 through 2.32.4 are affected. The root-privileged wsserver daemon builds a shell command from client-supplied WebSocket fields without quoting or validation, which allows OS command injection (CWE-78). A remote attacker without authentication can run commands as root, because the public-key session path performs no appliance-session check.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00416 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VertivAvocent ACS8000up to 2.32.4—No fix listedCNA
  • Avocent ACS8000 VendorVertiv Affected up to 2.32.4 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Vertiv Avocent ACS8000.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-65184
  2. 2026-10-26 CISA SSVC decision points changed
  3. 2026-10-27 Alias added: GHSA-f563-j7vj-6j8f

References

Advisory 1

Other 1

  • TI-2025-29133 Vertiv Liebert RDU101 and UNITY Authentication Bypass Using an Alternate Path or Channel CVSS 4.0CRITICAL 9.3
  • TI-2025-27590 Vertiv Liebert RDU101 and UNITY Stack-based Buffer Overflow CVSS 4.0CRITICAL 9.3
  • TI-2019-06942 The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to arbitrary remote code execution CVSS 3.1HIGH 8.3
  • TI-2022-26380 Cyclades Serial Console Server 3.3.0 - Local Privilege Escalation CVSS 4.0HIGH 8.5
  • TI-2018-09287 Emerson Liebert IntelliSlot Web Card devices allow remote attackers to reconfigure access… CVSS 3.1HIGH 7.5
  • TI-2018-07144 Geist WatchDog Console 3.2.2 uses a weak ACL for the C:\ProgramData\WatchDog Console… CVSS 3.1HIGH 7.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences