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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "Ver.1.0.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "CanonNWCamPlugin.exe", "source": "cna", "vendor": "Japan Media Systems Corporation"}, "product": "canonnwcamplugin.exe", "vendor": "japan_media_systems_corporation"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "Ver.1.0.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "CanonNWCamPluginForAdmin.exe", "source": "cna", "vendor": "Japan Media Systems Corporation"}, "product": "canonnwcampluginforadmin.exe", "vendor": "japan_media_systems_corporation"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "Ver.1.0.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Downloader5Installer.exe", "source": "cna", "vendor": "Japan Media Systems Corporation"}, "product": "downloader5installer.exe", "vendor": "japan_media_systems_corporation"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "Ver.1.0.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Downloader5InstallerForAdmin.exe", "source": "cna", "vendor": "Japan Media Systems Corporation"}, "product": "downloader5installerforadmin.exe", "vendor": "japan_media_systems_corporation"}], "analysis": {"en": {"generated_at": "2026-04-29T01:43:28.301121+00:00", "value": {"mitigation_remediation": ["Obtain the latest installer from an official, verified source and reinstall the software. This applies the vendor\u2019s fix that mitigates the DLL hijacking vulnerability (CWE\u2011427).", "Restrict write permissions on the directory that contains the installers so that only authorized administrators can modify its contents, applying ACLs that deny write access to all non-administrative accounts.", "Enable application whitelisting or enforce module signing so that only signed, trusted DLLs can be loaded during installation. Configuring Windows Defender Exploit Guard or similar tools will block unauthorized DLL injection attempts."], "summary": {"action": "Update installers", "impact": "Privilege escalation via DLL hijacking"}, "threat_synthesis": {"affected_systems": "Affected products are LiveOn Meet Client installers (Downloader5Installer.exe and Downloader5InstallerForAdmin.exe) and Canon Network Camera Plugin installers (CanonNWCamPlugin.exe and CanonNWCamPluginForAdmin.exe) released by Japan Media Systems Corporation.", "description_and_impact": "The vulnerability arises when installers of LiveOn Meet Client for Windows and Canon Network Camera Plugin load dynamic link libraries from the current directory without verifying their origin. If an attacker places a malicious DLL in the same folder as the installer, the installer will load and execute that DLL with the privileges of the user running it, effectively allowing arbitrary code execution with user-level rights.", "risk_and_exploitability": "The CVSS score of 8.4 indicates high severity. The EPSS score of less than1% suggests that exploitation is currently unlikely, and the vulnerability is not listed in CISA's KEV catalog. Nonetheless, an attacker who can place a DLL in the installer directory\u2014such as a local user with write access\u2014could trigger the vulnerability by executing the malicious code during installation. Based on the description, the likely attack vector is local and requires the attacker to have write permission to the directory containing the installer executable."}}}}, "created": "2026-04-28T09:26:35.961258+00:00", "title": "DLL Hijacking in LiveOn Meet and CanonNWCam Plugin Installers", "updated": "2026-04-29T01:45:26.035054+00:00", "vendors": ["japan_media_systems_corporation", "japan_media_systems_corporation$PRODUCT$canonnwcamplugin.exe", "japan_media_systems_corporation$PRODUCT$canonnwcampluginforadmin.exe", "japan_media_systems_corporation$PRODUCT$downloader5installer.exe", "japan_media_systems_corporation$PRODUCT$downloader5installerforadmin.exe"]}