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01 Record

CVE-2023-4804

Quantum HD Unity

CriticalPUBLISHEDCNA: jci
CNA base score10.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

02 Description

Quantum HD Unity

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.80% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.4% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-11-10 22:17Z2 YR AGO
Last updated
2025-12-16 18:23Z10 MO AGO
Reserved
2023-09-06
Assigning CNA
jci
Record state
PUBLISHED
Severity
Critical (CVSS 10.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
Data version
5.2
Document digest
8b7e9e4966c97e7080fb88e5802dfd0fee0ae284bf6eb3000b8fbba3d780173b

05 Affected products

VendorProductVersionsPlatforms
Johnson ControlsQuantum HD Unity Compressor0 to < 11.22, 0 to < 12.22—
Johnson ControlsQuantum HD Unity AcuAir0 to < 11.12, 0 to < 12.12—
Johnson ControlsQuantum HD Unity Condenser/Vessel0 to < 11.11, 0 to < 12.11—
Johnson ControlsQuantum HD Unity Evaporator0 to < 11.11, 0 to < 12.11—
Johnson ControlsQuantum HD Unity Engine Room0 to < 11.11, 0 to < 12.11—
Johnson ControlsQuantum HD Unity Interface0 to < 11.11, 0 to < 12.11—

06 References

07 Remediation

Update all Quantum HD Unity Compressor control panels to firmware version 11.22 (Q5) or 12.22 (Q6).

Update all Quantum HD Unity AcuAir control panels to firmware version 11.12 (Q5) or 12.12 (Q6).

Update all Quantum HD Unity Condenser/Vessel control panels to firmware version 11.11 (Q5) or 12.11 (Q6).

Update all Quantum HD Unity Evaporator control panels to firmware version 11.11 (Q5) or 12.11 (Q6).

Update all Quantum HD Unity Engine Room control panels to firmware version 11.11 (Q5) or 12.11 (Q6).

Update all Quantum HD Unity Interface control panels to firmware version 11.11 (Q5) or 12.11 (Q6).