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01 Record

CVE-2023-0052

SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function

CriticalPUBLISHEDCNA: icscert
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function

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
0.71% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 53.0% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/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
2023-01-20 21:23Z3 YR AGO
Last updated
2025-01-16 21:59Z1 YR AGO
Reserved
2023-01-04
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-306Missing Authentication for Critical FunctionBase
Data version
5.1
Document digest
e3ba0e31f1ecd22037e911474256e450c773417e2f704a0a757114a1721e343d

05 Affected products

VendorProductVersionsPlatforms
SAUTER ControlsNova 220 (EYK220F001) DDC with BACnet connectionFirmware all versions to 3.3-006, BACnetstac all versions to 4.2.1—
SAUTER ControlsNova 230 (EYK230F001) DDC with BACnet connectionFirmware all versions to 3.3-006, BACnetstac all versions to 4.2.1—
SAUTER ControlsNova 106 (EYK300F001) BACnet communication cardFirmware all versions to 3.3-006, BACnetstac all versions to 4.2.1—
SAUTER ControlsmoduNet300 (EY-AM300F001, EY-AM300F002)Firmware all versions to 3.3-006, BACnetstac all versions to 4.2.1—

06 References