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CVE-2023-0053

23
FAUCET Score

CVE-2023-0053 affects SAUTER Controls Nova 200–220 Series devices with specific firmware and BACnetstac versions, where device management relies solely on cleartext FTP and Telnet protocols. This critical vulnerability, rated 7.5 HIGH, allows an unauthenticated remote attacker to intercept sensitive information, including user credentials, due to the lack of encryption. While no active exploits or public exploit code are currently known, and community discussion is minimal, the potential for unauthorized system access remains significant.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3-006CPE matchmatch criteria
cpe:2.3:o:sauter-controls:nova_220_eyk220f001_firmware:*:*:*:*:*:*:*:*
<= 3.3-006CPE matchmatch criteria
cpe:2.3:o:sauter-controls:nova_230_eyk230f001_firmware:*:*:*:*:*:*:*:*
<= 3.3-006CPE matchmatch criteria
cpe:2.3:o:sauter-controls:nova_106_eyk300f001_firmware:*:*:*:*:*:*:*:*
<= 3.3-006CPE matchmatch criteria
cpe:2.3:o:sauter-controls:modunet300_ey-am300f001_firmware:*:*:*:*:*:*:*:*
<= 3.3-006CPE matchmatch criteria
cpe:2.3:o:sauter-controls:modunet300_ey-am300f002_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 11th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / uscert/ics/advisories/icsa-23-012-05
Third Party AdvisoryUS Government Resource