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Vulnerability record · CVE-2018-8840 · published 18 April 2018

CVE-2018-8840: Indusoft web studio stack-based buffer overflow vulnerability

Indusoft · Web Studio

A remote attacker could send a carefully crafted packet in InduSoft Web Studio v8.1 and prior versions, and/or InTouch Machine Edition 2017 v8.1 and prior versions during a tag, alarm, or event related action such as read and write, which may allow remote code execution.

9.8 CVSS 3.0 Critical EPSS 8.3% · top 5.2% CWE-121 · Stack-based buffer overflowCWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 10.0
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

A remote attacker could send a carefully crafted packet in InduSoft Web Studio v8.1 and prior versions, and/or InTouch Machine Edition 2017 v8.1 and prior versions during a tag, alarm, or event related action such as read and write, which may allow remote code execution.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://software.schneider-electric.com/pdf/security-bulletin/lfsec00000125/ Third Party Advisory
http://www.securityfocus.com/bid/103949 Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-01 Third Party AdvisoryUS Government Resource
https://www.tenable.com/security/research/tra-2018-07 Third Party Advisory
http://software.schneider-electric.com/pdf/security-bulletin/lfsec00000125/ Third Party Advisory
http://www.securityfocus.com/bid/103949 Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-01 Third Party AdvisoryUS Government Resource
https://www.tenable.com/security/research/tra-2018-07 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2014-0780InduSoft Web Studio NTWebServer path traversal exposes admin passwordsNTWebServer in InduSoft Web Studio 7.1 before SP2 Patch 4 is vulnerable to directory traversal, allowing remote attackers to read administrative pass…KEVEPSS 75%analysed10.0CVE-2011-4051InduSoft Web Studio CEServer missing authentication allows remote code executionCEServer.exe in the Remote Agent module of InduSoft Web Studio 6.1 and 7.0 does not require authentication. A remote attacker can reach the service a…EPSS 69%analysed10.0CVE-2011-0342Indusoft web studio memory buffer overflow vulnerabilityMultiple buffer overflows in the InduSoft ISSymbol ActiveX control in ISSymbol.ocx 301.1104.601.0 in InduSoft Web Studio 7.0B2 hotfix 7.0.01.04 allow…EPSS 5.9%10.0CVE-2011-1900Indusoft web studio path traversal vulnerabilityDirectory traversal vulnerability in NTWebServer in InduSoft Web Studio 6.1 and 7.x before 7.0+Patch 1 allows remote attackers to execute arbitrary c…EPSS 32%10.0CVE-2011-0488Advantech studio memory buffer overflow vulnerabilityStack-based buffer overflow in NTWebServer.exe in the test web service in InduSoft NTWebServer, as distributed in Advantech Studio 6.1 and InduSoft W…EPSS 8.6%9.3CVE-2011-4052Indusoft web studio memory buffer overflow vulnerabilityStack-based buffer overflow in CEServer.exe in the CEServer component in the Remote Agent module in InduSoft Web Studio 6.1 and 7.0 allows remote att…EPSS 5.7%9.3CVE-2011-0340Advantech studio memory buffer overflow vulnerabilityMultiple 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 distribute…EPSS 32%7.8CVE-2013-1627Advantech studio path traversal vulnerabilityAbsolute path traversal vulnerability in NTWebServer.exe in Indusoft Studio 7.0 and earlier and Advantech Studio 7.0 and earlier allows remote attack…EPSS 3.4%

Source: NIST National Vulnerability Database (record CVE-2018-8840), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.