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CVE-2011-3142

60
FAUCET Score

CVE-2011-3142 describes a critical stack-based buffer overflow vulnerability within an ActiveX control (KVWebSvr.dll) in WellinTech KingView versions 6.52 and 6.53. This flaw allows unauthenticated remote attackers to execute arbitrary code on affected systems by providing a specially crafted, long second argument to the ValidateUser method. With a CVSS score of 10.0, this vulnerability presents a severe risk, enabling complete compromise of confidentiality, integrity, and availability with low attack complexity. While not listed on CISA's KEV catalog, public exploit code is available via ExploitDB (EDB-16936), indicating a known and exploitable weakness, despite a lack of broader community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.52CPE matchmatch criteria
cpe:2.3:a:wellintech:kingview:6.52:*:*:*:*:*:*:*
6.53CPE matchmatch criteria
cpe:2.3:a:wellintech:kingview:6.53:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
38.10%
Probability of exploitation in next 30 days
EPSS Percentile
98.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-16936 · Mar 7, 2011
This CVE's current EPSS score of 0.3810 is in the 97th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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