Vulnerability Details CVE-2026-8398
A supply chain attack compromised the official installation packages of DAEMON Tools Lite (Windows versions 12.5.0.2421 through 12.5.0.2434), distributed from the legitimate website daemon-tools.cc between approximately April 8, 2026, and May 5, 2026. Attackers gained unauthorized access to the vendor's (AVB Disc Soft) build or distribution infrastructure and trojanized three binaries: DTHelper.exe, DiscSoftBusServiceLite.exe, and DTShellHlp.exe. These files were digitally signed with the legitimate AVB Disc Soft code-signing certificate, allowing the malicious installers to appear trustworthy and bypass signature-based detection.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.144
EPSS Ranking 94.6%
CVSS Severity
CVSS v3 Score 9.8
Proposed Action
Daemon Tools contains an unspecified vulnerability that has a high impact on confidentiality, integrity, and availability.
Ransomware Campaign
Unknown
References
Products affected by CVE-2026-8398
-
cpe:2.3:a:disc-soft:daemon_tools:12.5.1
-
cpe:2.3:o:microsoft:windows:-