CVE-2023-0053SAUTER Controls Nova 200–220 Series Cleartext Transmission of Sensitive Information
- 7.5HighCVSS base score
- 0.39%Exploitation in 30 daysEPSS · top 67% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By icscert
- 57 days later
· 57 days later
Published
- 23 months later
· 23 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| icscertCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.39% · top 67% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
SAUTER Controls · Nova 220 (EYK220F001) DDC with BACnet connection
- affected Firmware all versions – ≤ 3.3-006
- affected BACnetstac all versions – ≤ 4.2.1
SAUTER Controls · Nova 230 (EYK230F001) DDC with BACnet connection
- affected Firmware all versions – ≤ 3.3-006
- affected BACnetstac all versions – ≤ 4.2.1
SAUTER Controls · Nova 106 (EYK300F001) BACnet communication card
- affected Firmware all versions – ≤ 3.3-006
- affected BACnetstac all versions – ≤ 4.2.1
SAUTER Controls · moduNet300 (EY-AM300F001, EY-AM300F002)
- affected Firmware all versions – ≤ 3.3-006
- affected BACnetstac all versions – ≤ 4.2.1
What to do
Workaround: SAUTER Controls has stated that this product line is no longer supported, as it was discontinued in 2016. SAUTER Controls recommends users take all necessary measures to protect the integrity of building automation network access, using all appropriate means and policies to minimize risks. Sauter Controls recommends users evaluate and upgrade legacy systems to current solutions where necessary. Affected users should contact SAUTER Controls https://www.sauter-controls.com/ for instructions on upgrading legacy systems.
References
References1
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-12156 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-0053)Record last updated .