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01 Record

CVE-2023-0956

TEL-STER TelWin SCADA WebInterface Path Traversal

HighPUBLISHEDCNA: icscert
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

02 Description

TEL-STER TelWin SCADA WebInterface Path Traversal

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.01% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 63.0% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-03 18:08Z3 YR AGO
Last updated
2025-01-16 21:31Z1 YR AGO
Reserved
2023-02-22
Assigning CNA
icscert
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
Data version
5.1
Document digest
34ca1886ea77b1daa9f89199e95eba220f2ef1e1e7a08fe3b64c6f68ade52096

05 Affected products

VendorProductVersionsPlatforms
TEL-STERTelWin SCADA WebInterface3.2 to 6.1, 7.0 to 7.1, 8.0 to 9.0—

06 References

07 Remediation

TEL-STER recommends that users update WebInterface module https://www.tel-ster.pl/index.php/en/telwin-scada-eng/news-telwin-eng to one of the following versions: 6.2, 7.2, 8.1, 9.1, or 10.0. Please note that the WebInterface is part of the TelWin SCADA software and is usually updated with the software. TEL-STER only currently supports and updates TelWin SCADA 7.8 (WebInteraface 6.x) upwards TEL-STER does not have any updates planned for versions using older vulnerable WebInterface (lower than 6.0), and users are recommended to update TelWin SCADA to one of the supported versions. For more information, please contact TEL-STER. More information about this issue and the associated mitigation can be found at TEL-STER advisory https://www.tel-ster.pl/index.php/telwin-scada/nowosci/372-telwin-scada-podatnosc-cve-2023-0956 or CERT.PL advisory https://cert.pl/posts/2023/07/CVE-2023-0956/ .