CVE-2011-3142

critical

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.

References

http://www.us-cert.gov/control_systems/pdf/ICSA-11-074-01.pdf

http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-066-01.pdf

http://www.scadahacker.com/exploits-wellintech-kvwebsvr.html

http://www.osvdb.org/72889

http://www.kingview.com/news/detail.aspx?contentid=537

http://www.cnvd.org.cn/vulnerability/CNVD-2011-04541

Details

Source: Mitre, NVD

Published: 2011-08-16

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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