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🛡️ CVE-2023-0053 — bacnetstac

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-319 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: None.

Weakness class

CVE-2023-0053 is classified as CWE-319: Cleartext Transmission of Sensitive Information. Sensitive data crosses the network without encryption and can be read or altered in transit.

Affected software

CVE-2023-0053 is recorded against 6 packages.

  • bacnetstac (fixed in 4.2.1)
  • modunet300-ey-am300f001-firmware (fixed in 3.3-006)
  • modunet300-ey-am300f002-firmware (fixed in 3.3-006)
  • nova-106-eyk300f001-firmware (fixed in 3.3-006)
  • nova-220-eyk220f001-firmware (fixed in 3.3-006)
  • nova-230-eyk230f001-firmware (fixed in 3.3-006)

Timeline and source

Published on 2 March 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.cisa.gov
www.cisa.gov

Same weakness in other software

These advisories are the same class of weakness (CWE-319: Cleartext Transmission of Sensitive Information) in other software:

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-319
Public Exploit ✅ No
Source NVD
Published 2023-03-02
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
bacnetstac — 4.2.1
modunet300-ey-am300f001-firmware — 3.3-006
modunet300-ey-am300f002-firmware — 3.3-006
nova-106-eyk300f001-firmware — 3.3-006
nova-220-eyk220f001-firmware — 3.3-006
nova-230-eyk230f001-firmware — 3.3-006

References

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

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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