CVE-2026-32679 Overview
CVE-2026-32679 is a DLL Injection vulnerability affecting the installers of LiveOn Meet Client for Windows and Canon Network Camera Plugin. The affected installers (Downloader5Installer.exe, Downloader5InstallerForAdmin.exe, CanonNWCamPlugin.exe, and CanonNWCamPluginForAdmin.exe) insecurely load Dynamic Link Libraries (DLLs). If a malicious DLL is placed in the same directory as the installer, the affected application may load that DLL and execute its code with the privilege of the user invoking the installer.
Critical Impact
An attacker can achieve arbitrary code execution with the same privileges as the user running the installer, potentially leading to full system compromise if executed by an administrator.
Affected Products
- LiveOn Meet Client for Windows (Downloader5Installer.exe)
- LiveOn Meet Client for Windows (Downloader5InstallerForAdmin.exe)
- Canon Network Camera Plugin (CanonNWCamPlugin.exe)
- Canon Network Camera Plugin (CanonNWCamPluginForAdmin.exe)
Discovery Timeline
- 2026-04-23 - CVE CVE-2026-32679 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2026-32679
Vulnerability Analysis
This vulnerability is classified under CWE-427 (Uncontrolled Search Path Element), which describes a condition where an application searches for critical resources using an externally-supplied search path that can point to resources not under the application's direct control. In this case, the installers for LiveOn Meet Client and Canon Network Camera Plugin fail to properly specify the full path when loading DLL dependencies, allowing the Windows DLL search order to be exploited.
When an installer is executed from a user-writable directory (such as the Downloads folder), Windows follows a predefined search order to locate required DLLs. If the installer does not use absolute paths or implement SafeDllSearchMode properly, the current working directory is searched before system directories. An attacker can exploit this by placing a malicious DLL with the same name as a legitimate system DLL in the same directory as the installer.
Root Cause
The root cause of this vulnerability is the improper implementation of DLL loading within the affected installers. The applications fail to use secure DLL loading practices such as specifying absolute paths, using the SetDllDirectory API to restrict the search path, or employing manifest files to enforce side-by-side assembly loading. This oversight allows the Windows loader to search the current directory for DLLs before trusted system locations.
Attack Vector
The attack requires local access and user interaction. An attacker must place a malicious DLL file in the same directory where the victim will execute the installer. Common attack scenarios include:
Download Folder Attack: An attacker sends a malicious DLL file via email or web download. If the DLL lands in the same folder where the user downloads the legitimate installer, the malicious DLL will be loaded when the installer runs.
Network Share Attack: An attacker places both the installer and malicious DLL on a network share, tricking users into running the installer from that location.
Social Engineering: An attacker convinces the user to extract both files from an archive to the same directory before running the installer.
The malicious DLL executes with the same privileges as the installer process. When using Downloader5InstallerForAdmin.exe or CanonNWCamPluginForAdmin.exe, which require administrative privileges, the attacker's code would execute with elevated permissions, enabling complete system compromise.
Detection Methods for CVE-2026-32679
Indicators of Compromise
- Unexpected DLL files present in user download directories or alongside installer executables
- Process creation events showing the affected installer loading DLLs from non-system directories
- Suspicious DLL files with names matching common Windows system libraries in temporary or user-writable folders
- Unusual child processes spawned by the installer executables
Detection Strategies
- Monitor for DLL load events where the path is not within standard Windows system directories (C:\Windows\System32, C:\Windows\SysWOW64)
- Implement application whitelisting to prevent unauthorized DLL execution
- Deploy endpoint detection rules to alert on known-vulnerable installer file names loading DLLs from the current directory
- Use Sysmon Event ID 7 (Image Loaded) to track DLL loading behavior of the affected installers
Monitoring Recommendations
- Enable enhanced process and module load logging through Windows Event Log or EDR solutions
- Implement file integrity monitoring on download directories to detect suspicious DLL placement
- Configure SentinelOne Deep Visibility to track process-to-DLL relationships and flag anomalous loading patterns
- Alert on any execution of the affected installer binaries to ensure proper security controls are in place
How to Mitigate CVE-2026-32679
Immediate Actions Required
- Avoid running the affected installers from user-writable directories such as Downloads, Desktop, or temporary folders
- Before executing any installer, verify the directory contains only the legitimate installer file and no unexpected DLLs
- Run installers from a dedicated clean directory with restricted write permissions
- Use application control solutions to prevent execution of unsigned or untrusted DLLs
Patch Information
Organizations should consult the vendor security advisories for updated installer versions that address this vulnerability. The JVN #45563482 Advisory provides official guidance on this vulnerability. Additionally, the LiveOn Security Report JMSSA2026-001 contains specific remediation steps from the vendor.
Workarounds
- Create a dedicated installation directory with administrator-only write permissions and copy the installer there before execution
- Clear the Downloads folder of any DLL files before running installers
- Use Group Policy to restrict DLL loading from the current directory by enabling SafeDllSearchMode
- Implement application whitelisting policies that block unsigned DLLs from user-writable directories
# Verify no suspicious DLLs exist in installer directory before execution
# PowerShell command to check for DLL files in a directory
Get-ChildItem -Path "C:\InstallerDirectory" -Filter "*.dll" -Recurse | Select-Object FullName, Length, LastWriteTime
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
