CVE-2011-0340 EXPLOIT
9.3
HIGH · CVSS 2.0 · EPSS 32.3% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 9.3 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:C/I:C/A:C |
| EPSS | 32.35% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-05-04 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| advantech | advantech studio |
| indusoft | thin client |
| indusoft | web studio |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | InduSoft Web Studio - 'ISSymbol.ocx InternationalSeparator()' Heap Overflow (Metasploit) | 2012-12-20 |
References
- http://ics-cert.us-cert.gov/advisories/ICSA-12-249-03
- http://secunia.com/advisories/42928
- http://secunia.com/advisories/43116
- http://secunia.com/secunia_research/2011-36/
- http://secunia.com/secunia_research/2011-37/
- http://www.advantechdirect.com/eMarketingPrograms/AStudio_Patch/AStudio7.0_Patch_Final.htm
- http://www.indusoft.com/hotfixes/hotfixes.php
- http://www.securityfocus.com/bid/47596
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-137-02.pdf
- http://www.vupen.com/english/advisories/2011/1115
- http://www.vupen.com/english/advisories/2011/1116
- http://ics-cert.us-cert.gov/advisories/ICSA-12-249-03
- http://secunia.com/advisories/42928
- http://secunia.com/advisories/43116
- http://secunia.com/secunia_research/2011-36/
- http://secunia.com/secunia_research/2011-37/
- http://www.advantechdirect.com/eMarketingPrograms/AStudio_Patch/AStudio7.0_Patch_Final.htm
- http://www.indusoft.com/hotfixes/hotfixes.php
- http://www.securityfocus.com/bid/47596
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-137-02.pdf
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