CVE-2014-9265 in SmartViewer
Summary
by MITRE
Stack-based buffer overflow in the BackupToAvi method in the CNC_Ctrl ActiveX control in Samsung SmartViewer allows remote attackers to execute arbitrary code via unspecified vectors.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 08/09/2025
The vulnerability identified as CVE-2014-9265 represents a critical stack-based buffer overflow flaw within the CNC_Ctrl ActiveX control component of Samsung SmartViewer software. This vulnerability specifically affects the BackupToAvi method, which is designed to handle video backup operations from CNC (Computer Numerical Control) machines. The flaw exists in the way the ActiveX control processes input data during the backup operation, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized code execution privileges on affected systems. The vulnerability's impact is particularly severe given that ActiveX controls are typically executed with elevated privileges in web browsers, making them attractive targets for exploitation. The unspecified vectors mentioned in the description suggest that the attack surface encompasses multiple potential input channels that could trigger the buffer overflow condition, potentially including network-based attacks or malicious web content that loads the vulnerable ActiveX control.
The technical implementation of this vulnerability stems from improper bounds checking within the BackupToAvi method of the CNC_Ctrl ActiveX control. When processing user-supplied data for video backup operations, the control fails to validate the length of input parameters against the allocated stack buffer space. This allows attackers to overflow the buffer and overwrite adjacent memory locations, potentially including return addresses and control flow information. The stack-based nature of the vulnerability means that the overflow occurs in the program's stack memory segment, which is typically used for function call management and local variable storage. Attackers can manipulate the overflow to redirect program execution to malicious code placed at predetermined memory locations, effectively achieving remote code execution. This type of vulnerability is classified under CWE-121 Stack-based Buffer Overflow, which specifically addresses buffer overflows occurring in stack memory regions. The attack vector leverages the inherent trust model of ActiveX controls, where browser environments automatically execute downloaded components without requiring explicit user consent for potentially dangerous operations.
The operational impact of CVE-2014-9265 extends beyond simple code execution to encompass complete system compromise and potential data breach scenarios. Organizations utilizing Samsung SmartViewer for CNC machine monitoring and control are particularly vulnerable, as these systems often operate in industrial environments where unauthorized access can lead to production disruption, intellectual property theft, or even physical safety hazards. The remote exploit capability means that attackers can target these systems from anywhere on the internet without requiring physical access, making the vulnerability particularly dangerous for industrial control systems. The attack can result in persistent backdoor access, data exfiltration, and potential manipulation of CNC machine operations that could cause physical damage to equipment or products. This vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter, as the successful exploitation would allow attackers to execute arbitrary commands on the compromised system. The broader implications include potential lateral movement within networks, as compromised systems could serve as launch points for attacks against other connected devices.
Mitigation strategies for CVE-2014-9265 require immediate action to address the root cause while implementing layered defensive measures. Organizations should prioritize disabling or removing the vulnerable CNC_Ctrl ActiveX control from all affected systems, particularly those accessible from the internet. Browser security configurations should be updated to restrict ActiveX control execution, and administrators should implement strict software restriction policies that prevent unauthorized ActiveX controls from running. The most effective long-term solution involves upgrading to patched versions of Samsung SmartViewer software that address the buffer overflow condition through proper input validation and bounds checking. Network segmentation and firewall rules should be implemented to limit access to systems running SmartViewer, particularly in industrial environments where these systems may be exposed to external networks. Additionally, regular security assessments should include ActiveX control inventory management and vulnerability scanning to identify similar issues in other legacy components. Security monitoring should be enhanced to detect anomalous behavior patterns that may indicate exploitation attempts, including unusual network traffic or unexpected process execution on CNC systems. The vulnerability serves as a reminder of the persistent security risks associated with legacy ActiveX controls in modern enterprise environments and the critical importance of maintaining up-to-date security practices for industrial control systems.