CVE-2023-0956

Name: CVE-2023-0956
Creator: NVD / NIST
Published: 2023-08-03T19:15:10.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2023-0956 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. External input could be used on TEL-STER TelWin SCADA WebInterface to construct paths to files and directories without properly neutralizing special elements within the pathname, which could allow an unauthenticated attacker to read files on the system. . EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

External input could be used on TEL-STER TelWin SCADA WebInterface to construct paths to files and directories without properly neutralizing special elements within the pathname, which could allow an unauthenticated attacker to read files on the system.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.79%

51.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Tel-Ster	Telwin Scada Webinterface	>= 3.2, < 6.2
Tel-Ster	Telwin Scada Webinterface	>= 7.0, < 7.2
Tel-Ster	Telwin Scada Webinterface	8.0
Tel-Ster	Telwin Scada Webinterface	9.0

References

https://cert.pl/posts/2023/07/CVE-2023-0956/Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-03Third Party Advisory, US Government Resource
https://www.tel-ster.pl/index.php/telwin-scada/nowosci/372-telwin-scada-podatnosc-cve-2023-0956Vendor Advisory
https://cert.pl/posts/2023/07/CVE-2023-0956/Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-03Third Party Advisory, US Government Resource
https://www.tel-ster.pl/index.php/telwin-scada/nowosci/372-telwin-scada-podatnosc-cve-2023-0956Vendor Advisory

Timeline

Published: Aug 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0956?

How severe is CVE-2023-0956?

CVE-2023-0956 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0956?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0956?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST