How severe is CVE-2011-3142?

CVE-2011-3142 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-3142 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3142?

CVE-2011-3142 primarily affects Wellintech Kingview. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3142?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-3142 published?

CVE-2011-3142 was published on 2011-08-16 and last updated on 2026-06-16.

CVE-2011-3142

CVE-2011-3142 is a critical-severity vulnerability in Wellintech Kingview with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 38% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 38% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Wellintech Kingview
Published: 2011-08-16
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2011-3142?: 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.
How severe is CVE-2011-3142?: CVE-2011-3142 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-3142 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3142?: CVE-2011-3142 primarily affects Wellintech Kingview. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3142?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-3142 published?: CVE-2011-3142 was published on 2011-08-16 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:wellintech:kingview:6.52:*:*:*:*:*:*:*
cpe:2.3:a:wellintech:kingview:6.53:*:*:*:*:*:*:*

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