ACTi Network Video Recorder Sp2_2.0 ActiveX Control nvunifiedcontrol.dll second memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in ACTi Network Video Recorder Sp2_2.0. It has been classified as critical. This affects an unknown code in the library nvunifiedcontrol.dll of the component ActiveX Control. The manipulation of the argument second with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the nvUnifiedControl.AUnifiedControl.1 ActiveX control in nvUnifiedControl.dll in ACTi Network Video Recorder (NVR) SP2 2.0 allows remote attackers to execute arbitrary code via a long second argument to the SetText method.

The weakness was presented 08/28/2007 by shinnai (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2007-4582. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by shinnai and been published immediately after the advisory. The exploit is shared for download at It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (36305) and Exploit-DB (4322). See 38554 and 86036 for similar entries.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: shinnai
Download: 🔍

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Threat Intelligenceinfo

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Recommended: no mitigation known
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08/28/2007 🔍
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11/08/2007 +72 days 🔍
04/28/2011 +1266 days 🔍
03/16/2015 +1418 days 🔍
07/21/2021 +2319 days 🔍


Researcher: shinnai
Status: Confirmed

CVE: CVE-2007-4582 (🔍)
X-Force: 36305
Vulnerability Center: 31261 - ACTi NVR SP2 2.0 Remote Arbitrary Code Execution Vulnerability via the SetText Method, Medium
SecurityFocus: 25465 - ACTi Network Video Controller Multiple ActiveX Controls Multiple Remote Vulnerabilities
OSVDB: 38441 - ACTi NVR nvUnifiedControl.AUnifiedControl ActiveX (nvUnifiedControl.dll) SetText Method Arbitrary Code Execution

scip Labs:
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Created: 03/16/2015 12:18 PM
Updated: 07/21/2021 05:24 PM
Changes: 03/16/2015 12:18 PM (55), 03/22/2017 09:29 AM (16), 07/21/2021 05:24 PM (3)
Complete: 🔍


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