CVE-2023-0956
CVE-2023-0956 is a high-severity vulnerability in Tel-ster Telwin Scada Webinterface with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Tel-ster Telwin Scada Webinterface
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2023-0956?
- 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.
- How severe is CVE-2023-0956?
- CVE-2023-0956 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2023-0956 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-0956?
- CVE-2023-0956 primarily affects Tel-ster Telwin Scada Webinterface. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-0956?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-0956 published?
- CVE-2023-0956 was published on 2023-08-03 and last updated on 2026-06-17.
References
- https://cert.pl/posts/2023/07/CVE-2023-0956/
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-03
- https://www.tel-ster.pl/index.php/telwin-scada/nowosci/372-telwin-scada-podatnosc-cve-2023-0956
Affected products (3)
- cpe:2.3:a:tel-ster:telwin_scada_webinterface:*:*:*:*:*:*:*:*
- cpe:2.3:a:tel-ster:telwin_scada_webinterface:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:tel-ster:telwin_scada_webinterface:9.0:*:*:*:*:*:*:*
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