CVE-2026-8398 (GCVE-0-2026-8398)
Vulnerability from cvelistv5 – Published: 2026-05-15 07:30 – Updated: 2026-05-28 03:55
VLAI
EPSS
VEX
Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 00:00 UTC
CWE
- CWE-506 - Embedded Malicious Code
Assigner
Kaspersky
CNA
References
3 references
| URL | Tags |
|---|---|
| https://securelist.com/tr/daemon-tools-backdoor/119654/ | technical-descriptionthird-party-advisory |
| https://blog.daemon-tools.cc/post/security-incident | vendor-advisory |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AVB Disc Soft | DAEMON Tools Lite |
Affected:
12.5.0.2421 , < 2.6.0.*
(semver)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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