CVE-2023-0053

Name: CVE-2023-0053
Creator: NVD / NIST
Published: 2023-03-02T01:15:11.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2023-0053 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.39%

30.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sauter-Controls	Nova 220 Eyk220f001 Firmware	<= 3.3-006
Sauter-Controls	Nova 230 Eyk230f001 Firmware	<= 3.3-006
Sauter-Controls	Nova 106 Eyk300f001 Firmware	<= 3.3-006
Sauter-Controls	Modunet300 Ey-Am300f001 Firmware	<= 3.3-006
Sauter-Controls	Modunet300 Ey-Am300f002 Firmware	<= 3.3-006
Sauter-Controls	Bacnetstac	<= 4.2.1

References

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

Timeline

Published: Mar 2, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0053?

How severe is CVE-2023-0053?

CVE-2023-0053 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0053?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0053?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST