CVE-2011-4536

Heap-based buffer overflow in nettransdll.dll in HistorySvr.exe (aka HistoryServer.exe) in WellinTech KingView 6.53 and 65.30.2010.18018 allows remote attackers to execute arbitrary code via a crafted op-code 3 packet.

Published: 2011-12-27 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2011-4536 is rated High Risk (70.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 31.04%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-4536

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-17	34.43%	31.04%	-3.39%
2	2025-08-27	30.71%	34.43%	+3.72%
3	2025-03-30	—	30.71%	—

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4536

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
10.0	2.0	HIGH	`AV:N/AC:L/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	10.0	10.0	[email protected]

Weakness enumeration for CVE-2011-4536

CWE-119 MITRE ↗

Affected software / configurations for CVE-2011-4536

Vendor	Product	Version	Raw CPE
wellintech	kingview	6.53	cpe:2.3:a:wellintech:kingview:6.53:::::::*
wellintech	kingview	65.30.2010.18018	cpe:2.3:a:wellintech:kingview:65.30.2010.18018:::::::*

References for CVE-2011-4536

URL	Tags
http://en.wellintech.com/news/detail.aspx?contentid=166	Patch Vendor Advisory
http://secunia.com/advisories/47339	Vendor Advisory
http://www.kingview.com/news/detail.aspx?contentid=587	Patch Vendor Advisory
http://www.osvdb.org/77992
http://www.us-cert.gov/control_systems/pdf/ICSA-11-355-02.pdf	Patch US Government Resource
http://www.zerodayinitiative.com/advisories/ZDI-11-351/

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