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CVE-2011-4034

44
FAUCET Score

CVE-2011-4034 describes a critical buffer overflow vulnerability in the Steema TeeChart ActiveX control, impacting Schneider Electric Vijeo Historian, CitectHistorian, and CitectSCADAReports. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service. With a CVSS score of 9.3, it presents a high risk due to its network-based attack vector, medium complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a Metasploit module exists, indicating public exploit code availability. Despite its severity and exploit availability, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.30CPE matchmatch criteria
cpe:2.3:a:schneider-electric:vijeo_historian:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:schneider-electric:vijeo_historian:4.0:*:*:*:*:*:*:*
4.10CPE matchmatch criteria
cpe:2.3:a:schneider-electric:vijeo_historian:4.10:*:*:*:*:*:*:*
4.20CPE matchmatch criteria
cpe:2.3:a:schneider-electric:vijeo_historian:4.20:*:*:*:*:*:*:*
<= 4.30CPE matchmatch criteria
cpe:2.3:a:schneider-electric:citecthistorian:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
13.37%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: TeeChart Professional ActiveX Control Trusted Integer Dereference · Aug 11, 2011
This CVE's current EPSS score of 0.1337 is in the 79th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

citect.com / index.php
PatchVendor Advisory
scada.schneider-electric.com / sites/scada/en/login/historian-vulnerability.page
PatchVendor Advisory
us-cert.gov / control_systems/pdf/ICSA-11-307-01.pdf
PatchUS Government Resource