Stack-based buffer overflow in an ActiveX control in KVWebSvr.dll in WellinTech KingView…
Priority HIGH 70CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.38356 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wellintech:kingview:6.52:*:*:*:*:*:*:* | 6.52 | Vulnerable | WellinTech |
| cpe:2.3:a:wellintech:kingview:6.53:*:*:*:*:*:*:* | 6.53 | Vulnerable | WellinTech |
- cpe:2.3:a:wellintech:kingview:6.52:*:*:*:*:*:*:* Versions 6.52 Vulnerable ·WellinTech
- cpe:2.3:a:wellintech:kingview:6.53:*:*:*:*:*:*:* Versions 6.53 Vulnerable ·WellinTech
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-3142
- 2026-10-03 Alias added: GHSA-7pmx-g6fr-5xwx
References
Exploit 1
Patch 2
More WellinTech Kingview vulnerabilities
- TI-2012-04017 Buffer overflow in kingMess.exe 65.20.2003.10300 in WellinTech KingView 6.52… CVSS 2.0HIGH 10.0
- TI-2011-00341 Heap-based buffer overflow in HistorySvr.exe in WellinTech KingView 6.53 allows remote… CVSS 2.0HIGH 10.0
- TI-2012-01615 Heap-based buffer overflow in WellinTech KingView 6.53 allows remote attackers to execute… CVSS 2.0HIGH 10.0
- TI-2011-03907 Heap-based buffer overflow in nettransdll.dll in HistorySvr.exe (aka HistoryServer.exe)… CVSS 2.0HIGH 10.0
- TI-2012-01614 Stack-based buffer overflow in WellinTech KingView 6.53 allows remote attackers to… CVSS 2.0HIGH 10.0
- TI-2012-01616 WellinTech KingView 6.53 allows remote attackers to execute arbitrary code or cause a… CVSS 2.0HIGH 10.0
Sources
- CVE-2011-3142 · CVE Program
- CVE-2011-3142 · NVD
- FIRST EPSS
- GHSA-7pmx-g6fr-5xwx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences