PT-2026-41279 · Avb Disc Soft · Daemon Tools Lite

Anton Kargin + 3 · Published 2026-05-15 · Updated 2026-05-15 · CVE-2026-8398

Mitre

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

RCE

Weakness Enumeration

CWE-506

Related Identifiers

CVE-2026-8398

Affected Products

Daemon Tools Lite

References · 3

• https://blog.daemon-tools.cc/post/security-incident · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8398 · Security Note
• https://securelist.com/tr/daemon-tools-backdoor/119654 · Note