← Vulnerability feed

Vulnerability record · CVE-2011-3142 · published 16 August 2011

CVE-2011-3142: Wellintech kingview memory buffer overflow vulnerability

Wellintech · Kingview

Stack-based buffer overflow in an ActiveX control in KVWebSvr.dll in WellinTech KingView 6.52 and 6.53 allows remote attackers to execute arbitrary code via a long second argument to the ValidateUser method.

10.0 CVSS 2.0 High EPSS 38% · top 1.5% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in an ActiveX control in KVWebSvr.dll in WellinTech KingView 6.52 and 6.53 allows remote attackers to execute arbitrary code via a long second argument to the ValidateUser method.

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

Affected products

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

References

LinkTags
http://www.cnvd.org.cn/vulnerability/CNVD-2011-04541
http://www.exploit-db.com/exploits/16936 Exploit
http://www.kingview.com/news/detail.aspx?contentid=537
http://www.osvdb.org/72889
http://www.scadahacker.com/exploits-wellintech-kvwebsvr.html
http://www.securityfocus.com/bid/46757 Exploit
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-066-01.pdf Patch
http://www.us-cert.gov/control_systems/pdf/ICSA-11-074-01.pdf Patch
http://www.cnvd.org.cn/vulnerability/CNVD-2011-04541
http://www.exploit-db.com/exploits/16936 Exploit
http://www.kingview.com/news/detail.aspx?contentid=537
http://www.osvdb.org/72889
http://www.scadahacker.com/exploits-wellintech-kvwebsvr.html
http://www.securityfocus.com/bid/46757 Exploit
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-066-01.pdf Patch
http://www.us-cert.gov/control_systems/pdf/ICSA-11-074-01.pdf Patch

Track CVE-2011-3142 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

10.0CVE-2012-4711WellinTech KingView kingMess.exe buffer overflow via crafted packetA buffer overflow exists in kingMess.exe in WellinTech KingView 6.52, 6.53 and 6.55. A crafted packet can corrupt memory, allowing remote code execut…EPSS 61%analysed10.0CVE-2012-1830Wellintech kingview memory buffer overflow vulnerabilityStack-based buffer overflow in WellinTech KingView 6.53 allows remote attackers to execute arbitrary code via a crafted packet to TCP port 555.EPSS 7.7%10.0CVE-2012-1831Wellintech kingview memory buffer overflow vulnerabilityHeap-based buffer overflow in WellinTech KingView 6.53 allows remote attackers to execute arbitrary code via a crafted packet to TCP port 555.EPSS 16%10.0CVE-2012-1832Wellintech kingview memory buffer overflow vulnerabilityWellinTech KingView 6.53 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via a crafted packet to …EPSS 5.9%10.0CVE-2011-4536Wellintech kingview memory buffer overflow vulnerabilityHeap-based buffer overflow in nettransdll.dll in HistorySvr.exe (aka HistoryServer.exe) in WellinTech KingView 6.53 and 65.30.2010.18018 allows remot…EPSS 8.5%10.0CVE-2011-0406Wellintech kingview memory buffer overflow vulnerabilityHeap-based buffer overflow in HistorySvr.exe in WellinTech KingView 6.53 allows remote attackers to execute arbitrary code via a long request to TCP …EPSS 21%9.3CVE-2012-1819Wellintech kingview vulnerabilityUntrusted search path vulnerability in WellinTech KingView 6.53 allows local users to gain privileges via a Trojan horse DLL in the current working d…EPSS 1.7%7.1CVE-2012-1977Wellintech kingview missing encryption vulnerabilityWellinTech KingSCADA 3.0 uses a cleartext base64 format for storage of passwords in user.db, which allows context-dependent attackers to obtain sensi…EPSS 0.79%

Source: NIST National Vulnerability Database (record CVE-2011-3142), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.