Buffer overflow in the Steema TeeChart ActiveX control, as used in Schneider Electric Vijeo Historian 4.30 and earlier, CitectHistorian 4.3…

published 2011-12-02 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3986

cvss: 9.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 13.4%; EPSS 13.4% chance of exploitation in 30 days, percentile 96%
public exploits: 1; Metasploit

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.

Patch / fix

links 3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-11-307-01 updated 2025-06-09 cvss 9.3

Schneider Electric Vijeo Historian Web Server Multiple Vulnerabilities

Schneider Electric CitectHistorian <=V4.30 Schneider Electric CitectSCADA Reports <=V4.10 Schneider Electric Vijeo Historian <=V4.30
affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

2011-08-11 First public exploit (Metasploit exploit/windows/browser/teechart_pro)
2011-12-02 Published

Exploit prediction

13.37% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/windows/browser/teechart_pro TeeChart Professional ActiveX Control Trusted Integer Dereference metasploit exploit, normal rank, 2011-08-11

CVSS scores

assigned by	version	score	vector
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

scada.schneider-electric.com /sites/scada/en/login/historian-vulnerability.page
patch, vendor-advisory
us-cert.gov /control_systems/pdf/ICSA-11-307-01.pdf
patch, us-government-resource
citect.com /index.php?option=com_content&view=article&id=1656&Itemid=1695
patch, vendor-advisory

Sources

CVE List CVE-2011-4034
NVD CVE-2011-4034

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary