CVE-2023-0053

SAUTER Controls Nova 200–220 Series Cleartext Transmission of Sensitive Information

HIGH
7.5
CVSS Score
Published: March 2, 2023 at 12:15 AM UTC
Updated: June 17, 2026 at 05:24 AM UTC
11 products affected across 1 vendorMODUNET300 Ey AM300F001 FirmwareMODUNET300 Ey AM300F002 FirmwareNova 230 EYK230F001 Firmware

Using Nova 220 (EYK220F001) DDC with BACnet connection by SAUTER Controls?

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

SAUTER Controls Nova 200–220 Series with firmware version 3.3-006 and prior and BACnetstac version 4.2.1 and prior have only FTP and Telnet available for device management. Any sensitive information communicated through these protocols, such as credentials, is sent in cleartext. An attacker could obtain sensitive information such as user credentials to gain access to the system.

Affected

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

v ≤ 3.3-006
sauter-controls-modunet300-ey-am300f001 (same device)
v ≤ 3.3-006
sauter-controls-modunet300-ey-am300f002 (same device)
v ≤ 3.3-006
sauter-controls-nova-106-eyk300f001 (same device)
v ≤ 3.3-006
sauter-controls-nova-220-eyk220f001 (same device)
v ≤ 3.3-006
sauter-controls-nova-230-eyk230f001 (same device)
BACnetstac all versions ≤ v ≤ 4.2.1Firmware all versions ≤ v ≤ 3.3-006BACnetstac all versionsFirmware all versions
BACnetstac all versions ≤ v ≤ 4.2.1Firmware all versions ≤ v ≤ 3.3-006BACnetstac all versionsFirmware all versions
BACnetstac all versions ≤ v ≤ 4.2.1Firmware all versions ≤ v ≤ 3.3-006BACnetstac all versionsFirmware all versions
BACnetstac all versions ≤ v ≤ 4.2.1Firmware all versions ≤ v ≤ 3.3-006BACnetstac all versionsFirmware 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.

References (1)

Third Party AdvisoryUS Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-23-012-05

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-319

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