VULNERABILITY INTELLIGENCE

CVE-2026-8398

CVSS score9.8 CRITICAL
EPSS probability1.46%
CISA KEVKnown exploited vulnerability
Published2026-05-15
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Daemon Tools Lite Embedded Malicious Code Vulnerability

Vendor / product: Daemon / Daemon Tools Lite

Description

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.

Weakness classification

  • vulnerability@kaspersky.com: CWE-506

Primary references