Is CVE-2011-0340 actively exploited?

CVE-2011-0340 has no public evidence of in-the-wild exploitation as of 2025-04-11.

What is the CVSS score for CVE-2011-0340?

CVE-2011-0340 has a CVSS score of 9.3 (UNKNOWN severity). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C.

How do I patch CVE-2011-0340?

Patch guidance is available from advantech security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2011-0340.

CVE-2011-0340 - remediation guidance & executive summary

Q: Which products are affected by CVE-2011-0340?

5 products: advantech advantech studio, indusoft thin client, indusoft web studio, indusoft web studio, indusoft web studio.

Description

Multiple buffer overflows in the ISSymbol ActiveX control in ISSymbol.ocx 61.6.0.0 and 301.1009.2904.0 in the ISSymbol virtual machine, as distributed in Advantech Studio 6.1 SP6 61.6.01.05, InduSoft Web Studio before 7.0+SP1, and InduSoft Thin Client 7.0, allow remote attackers to execute arbitrary code via a long (1) InternationalOrder, (2) InternationalSeparator, or (3) LogFileName property value; or (4) a long bstrFileName argument to the OpenScreen method.

CVSS Metrics

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector: network
Access Cmplx: medium
Auth: none
Confidentiality: complete
Integrity: complete
Availability: complete
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: ADVANTECH
Published: 5/4/2011
Last Modified: 4/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

advantech : advantech_studioindusoft : thin_clientindusoft : web_studioindusoft : web_studioindusoft : web_studio

Remediation Guidance

Executive Summary

View on NIST NVD