Is CVE-2011-4034 being actively exploited?

CVE-2011-4034 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4034?

CVE-2011-4034 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2011-4034

HIGH · CVSS 9.3EPSS 13.4%EU EUVD

Buffer overflow in the Steema TeeChart ActiveX control, as used in Schneider Electric Vijeo Historian 4.30 and earlier, CitectHistorian 4.30 and earlier, and CitectSCADAReports 4.10 and earlier, allows remote attackers to execute arbitrary code or cause a denial of service via unspecified vectors.

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-119
EPSS score: 13.4% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-3986)
Published: December 2, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-3986 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

schneider-electric / citecthistorian
schneider-electric / citecthistorian
schneider-electric / citectscada reports
schneider-electric / citectscada reports
schneider-electric / vijeo historian
schneider-electric / vijeo historian
schneider-electric / vijeo historian
schneider-electric / vijeo historian

References

http://www.citect.com/index.php?option=com_content&view=article&id=1656&Itemid=1695(Patch, Vendor Advisory)
http://www.scada.schneider-electric.com/sites/scada/en/login/historian-vulnerability.page(Patch, Vendor Advisory)
http://www.us-cert.gov/control_systems/pdf/ICSA-11-307-01.pdf(Patch, US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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