CVE-2023-0052SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function
- 9.8CriticalCVSS base score
- 0.74%Exploitation in 30 daysEPSS · top 45% 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 allows the execution of commands without credentials. As Telnet and file transfer protocol (FTP) are the only protocols available for device management, an unauthorized user could access the system and modify the device configuration, which could result in the unauthorized user executing unrestricted malicious commands.
Timeline
ID reserved
By icscert
- 16 days later
· 16 days later
Published
- 24 months later
· 24 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 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.74% · top 45% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
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
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-2023-12155 (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-2023-0052)Record last updated .