How severe is CVE-2023-0053?

CVE-2023-0053 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-0053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0053?

CVE-2023-0053 primarily affects Sauter-controls Bacnetstac. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-0053 published?

CVE-2023-0053 was published on 2023-03-02 and last updated on 2026-06-17.

CVE-2023-0053

CVE-2023-0053 is a high-severity vulnerability in Sauter-controls Bacnetstac with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Sauter-controls Bacnetstac
Published: 2023-03-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-0053?: 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.
How severe is CVE-2023-0053?: CVE-2023-0053 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-0053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0053?: CVE-2023-0053 primarily affects Sauter-controls Bacnetstac. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-0053 published?: CVE-2023-0053 was published on 2023-03-02 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-23-012-05

Affected products (6)

cpe:2.3:o:sauter-controls:nova_220_eyk220f001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sauter-controls:nova_230_eyk230f001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sauter-controls:nova_106_eyk300f001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sauter-controls:modunet300_ey-am300f001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sauter-controls:modunet300_ey-am300f002_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:sauter-controls:bacnetstac:*:*:*:*:*:*:*:*

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