Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2011-0340

64
FAUCET Score

CVE-2011-0340 describes multiple buffer overflow vulnerabilities within the ISSymbol ActiveX control (ISSymbol.ocx) found in Advantech Studio, InduSoft Web Studio, and InduSoft Thin Client. These flaws allow remote attackers to execute arbitrary code by supplying overly long values to specific properties or method arguments. With a CVSS score of 9.3, this vulnerability is critical, indicating a network-based attack with medium complexity that can lead to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a Metasploit module exists for exploitation, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
6.1CPE matchmatch criteria
cpe:2.3:a:advantech:advantech_studio:6.1:sp6_61.6.01.05:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:indusoft:thin_client:7.0:*:*:*:*:*:*:*
<= 7.0CPE matchmatch criteria
cpe:2.3:a:indusoft:web_studio:*:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:a:indusoft:web_studio:6.1:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:a:indusoft:web_studio:6.1:sp6:*:*:*:*:*:*

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
32.35%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: InduSoft Web Studio ISSymbol.ocx InternationalSeparator() Heap Overflow · Apr 28, 2012
ExploitDB: EDB-23500 · Dec 20, 2012
This CVE's current EPSS score of 0.3235 is in the 94th percentile among its peer group of 8,914 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

ics-cert.us-cert.gov / advisories/ICSA-12-249-03
secunia.com / advisories/42928
Vendor Advisory
secunia.com / advisories/43116
Vendor Advisory
secunia.com / secunia_research/2011-36
Vendor Advisory
secunia.com / secunia_research/2011-37
Vendor Advisory
advantechdirect.com / eMarketingPrograms/AStudio_Patch/AStudio7.0_Patch_Final.htm
indusoft.com / hotfixes/hotfixes.php
securityfocus.com / bid/47596
us-cert.gov / control_systems/pdf/ICSA-12-137-02.pdf
vupen.com / english/advisories/2011/1115
Vendor Advisory
vupen.com / english/advisories/2011/1116
Vendor Advisory