HIGH
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
Published Aug 16, 2011
10.0
HIGHCVSS 2.0
EPSS 38.36%
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.
Affected products
No data.
OR
- 6.52
- 6.53
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
38.36% 0.38356
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.38356
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 38.36% (0.38356) | 98.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 38.80% (0.38801) | 98.39th | v5 (v2026.06.15) |
| Feb 19, 2026 | 33.20% (0.33199) | 96.79th | v4 (v2025.03.14) |
| Dec 3, 2025 | 29.33% (0.29326) | 96.43th | v4 (v2025.03.14) |
| Jul 7, 2025 | 39.50% (0.39497) | 97.13th | v4 (v2025.03.14) |
| Apr 16, 2025 | 32.49% (0.32488) | 96.54th | v4 (v2025.03.14) |
| Mar 30, 2025 | 26.66% (0.26656) | 95.91th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.82% (0.30819) | 94.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 26.66% (0.26656) | 95.92th | v4 (v2025.03.14) |
| Dec 17, 2024 | 30.20% (0.30199) | 96.93th | v3 (v2023.03.01) |
| Sep 17, 2024 | 62.94% (0.62943) | 97.90th | v3 (v2023.03.01) |
| Jul 22, 2024 | 18.88% (0.18878) | 96.30th | v3 (v2023.03.01) |
| Jul 7, 2024 | 16.65% (0.16649) | 96.08th | v3 (v2023.03.01) |
| May 24, 2024 | 12.48% (0.12481) | 95.43th | v3 (v2023.03.01) |
| May 10, 2024 | 8.79% (0.08789) | 94.50th | v3 (v2023.03.01) |
| Apr 25, 2024 | 6.87% (0.06866) | 93.82th | v3 (v2023.03.01) |
| Apr 12, 2024 | 4.61% (0.04605) | 92.41th | v3 (v2023.03.01) |
| Mar 28, 2024 | 4.51% (0.04511) | 92.30th | v3 (v2023.03.01) |
| Mar 15, 2024 | 4.05% (0.04049) | 91.87th | v3 (v2023.03.01) |
| Feb 8, 2024 | 3.90% (0.03896) | 91.63th | v3 (v2023.03.01) |
| Dec 23, 2023 | 45.54% (0.45538) | 97.08th | v3 (v2023.03.01) |
| Oct 29, 2023 | 44.97% (0.44973) | 96.99th | v3 (v2023.03.01) |
| Sep 4, 2023 | 41.55% (0.41554) | 96.83th | v3 (v2023.03.01) |
| May 15, 2023 | 47.68% (0.47680) | 96.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 41.92% (0.41916) | 96.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 20.10% (0.20096) | 96.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 20.10% (0.20096) | 96.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 20.10% (0.20096) | 93.97th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://www.cnvd.org.cn/vulnerability/CNVD-2011-04541 x_refsource_MISC
- http://www.exploit-db.com/exploits/16936 exploitx_refsource_EXPLOIT-DB
- http://www.kingview.com/news/detail.aspx?contentid=537 x_refsource_CONFIRM
- http://www.osvdb.org/72889 vdb-entryx_refsource_OSVDB
- http://www.scadahacker.com/exploits-wellintech-kvwebsvr.html x_refsource_MISC
- http://www.securityfocus.com/bid/46757 vdb-entryx_refsource_BIDExploit
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-066-01.pdf x_refsource_MISCPatch
- http://www.us-cert.gov/control_systems/pdf/ICSA-11-074-01.pdf x_refsource_MISCPatch
| Link | Providers | Tags |
|---|---|---|
| http://www.cnvd.org.cn/vulnerability/CNVD-2011-04541 | x_refsource_MISC | |
| http://www.exploit-db.com/exploits/16936 | exploitx_refsource_EXPLOIT-DB | |
| http://www.kingview.com/news/detail.aspx?contentid=537 | x_refsource_CONFIRM | |
| http://www.osvdb.org/72889 | vdb-entryx_refsource_OSVDB | |
| http://www.scadahacker.com/exploits-wellintech-kvwebsvr.html | x_refsource_MISC | |
| http://www.securityfocus.com/bid/46757 | vdb-entryx_refsource_BIDExploit | |
| http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-066-01.pdf | x_refsource_MISCPatch | |
| http://www.us-cert.gov/control_systems/pdf/ICSA-11-074-01.pdf | x_refsource_MISCPatch |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 16, 2011
Updated Sep 17, 2024
Reserved Aug 16, 2011
Link CVE-2011-3142
CISA Vulnrichment
Updated n/a